Ressources FAQ

Frequently Asked Questions

Anamorphic Rear Adapter
  • 1.1 - When using the rear anamorphic attachment for the cooke zoom lens, would this change all the markings on the focus ring? For example, setting the focus to 10 foot on the lens, would a subject in focus at 10 foot?

    The zoom scale changes: multiply the focal length x2

    The focus scale stays the same if the lens with adapter is properly collimated, so yes, a subject at 10 feet would be sharp with the lens set to 10 feet.

Birdcage
  • 2.1 - Is it possible to use a Sony A7II (or ILCE-7M2) camera with the Birdcage and the BoomBooster. I know it can be used with the A7s, but does it fit the A7II fit or is this camera too big?

    We are working on the new BIRDCAGE A7 II and A7R II.

    THE NEW EDITION OF THE BIRDCAGE A7 II WILL BE AVAILABLE IN SEPTEMBER! The new SONY A7 II SERIES is bigger and fatter.....needs a complete new design. 

    The BoomBooster will be totally compatible between different BIRDCAGE A7 Series.

IMS mounts
  • 3.1 - Are you also working on a Leica M mount for the Arri Amira or Mini?

    The ARRI Amira and Mini cameras will not work with Leica M lenses. The mount interface at these cameras is 24mm. The flange focal distance of Leica M lenses is only 19mm.

  • 3.2 - Can I use the IMS B4 mount together with the FZ adapter ring on a Sony F55 / F5 / F3 ?

    No, mechanically it does not fit the Sony cameras. The IMS B4 mount was designed especially for cameras with IMS interface on camera and a smaller sensor (SI-2K, A-Cam)

  • 3.3 - Do you have a MFT mount for IMS cameras?

    No, the flange focal distance of MFT (Micro 4/3) is almost same as the flange focal distance of our IMS intermediate flange, so we cannot offer this adapter combination.

  • 3.4 - Do you offer a Sony FZ to Sony E adapter?

    No.

  • 3.5 - Do you offer a Sony-e to Sony-Fz mount adapter?

    No. Our R&D department evaluated this adapter combination and found it is techinically impossible to design this mount adapter.

Lens Rehousing in general
  • 4.1 - How about the coating ?

    1) we check the coating at receipt of the lenses and recommendations will be given

    2) uncoating is possible on request

  • 4.2 - How should I understand your lens service report / recommendation?

    Generally there is a great difference in expectations between an owner of a lens using it himself or a lens available from a rental house. That is what we've learned.

    Report explanation:

    slightly dirty means you can see dirt under good test condition, but the influence of the image will be very little

    dirty means you can see dirt easily and you may have more flair light in the lens and on the image

    oil means oil has gone from the iris mechanic onto the glass which causes for sure more flares. The old oil got dry and made the iris stiff, service is strongly recommended

  • 4.3 - What is the warranty on the rehousing ?

    12 months warratny on mechanical parts by P+S Technik

  • 4.4 - Why are two different minimum aperture values engraved on the rehoused lens?

    On our rehousings we engrave the T- or f/stop value of the original lens as a reference on the bottom (if looked at the lens from the camera) of the aperture ring.

    We re-measure the aperture stops and engrave according to those new effective values. T-stops are engraved with a line and numbers, additional short lines indicate the 1/3 of a stop in between. Deviations from an original T-stop value result from aging of glass and especially from the yellowing of lens elements.

  • 4.5 - Why can the aperture ring move over and further than the smallest/largest T-stop marking on the aperture ring?

    If the aperture ring has overstroke without marking, the aperture can be opened or closed further than the last marking but less than a 1/3 of a stop.

    T-stops are engraved with a line and numbers, additional short lines indicate the 1/3 of a stop in between. Only the last full T-stop do the shematics (https://de.wikipedia.org/wiki/Blendenreihe_(Optik))

  • 4.6 - Will the lenses be colour matched after rehousing or lens service ?

    No, colour matching of the lenses is not possible! 

    We are talking about vintage lenses here and each lens got it's own character over time.

  • 4.7 - Will the serial numbers of the lenses stay the same after the rehousing?

    Yes.

Lens Rehousing of Bausch & Lomb Super Baltars
  • 5.1 - Are the lenses checked for fungus and thoroughly cleaned with fungi-stopping baths before rehousing?

    We offer lens services on different levels as additional services. We can perform a glass and iris service. An anti fungi treatment is common.

    Pls. see Technical Information Polishing – Grinding – Re-Coating – De-coloration

    Pls. See our Technical Information about how we judge lenses and suggest lens service.

  • 5.2 - Can I change feet to metric scales?

    Yes, please choose left right index too

  • 5.3 - Can some lenses gain close focus?

    No, the lenses have the original focus range.

  • 5.4 - Can you cover the sensors of all digital cameras?

    Not tested

  • 5.5 - Can you re-house also other models?

    There are different older housings from the history on the market, we re-housing Mitchell Mount, BNC-R Mount and Glass only. The glass block is the same in all versions - what we have seen so far.

  • 5.6 - Do you plan on any color for the engravings and markings?

    No, all engravings are white.

  • 5.7 - Does the focus and iris position change?

    Yes, depending of original housing type

  • 5.8 - Does the serial numbers stay the same?

    Yes.

  • 5.9 - Focus mechanism: will the lens retain its helicoidal system or will they be cam driven?

    New helical system

  • 5.10 - How about the coating and fungi treatment?

    1) coating, fungus, cementing will be checked at receipt and recommendation given

    2) uncoating on request possible

  • 5.11 - How many witness marks will the lens have?

    We have same as the original, but re-measured. We do detailed graded witness marks in feet or meter

  • 5.12 - Is it an internal focus design or the barrel telescopes while focusing?

    The focus mechanism is a new designed on helical base.

    The lenses shift a little, but the focus gear is wide enough to use motors ( see data sheet ). The glass block and front ring (100mm) are not rotating.

  • 5.13 - Is the front 80mm with a filter 77mm threads?

    The front diameter on every lens is the same, 100 mm. A filter thread is not planned.

     

  • 5.14 - What is the lens mount?

    PL mount (Positive Lock).

  • 5.15 - What weight has a lens after the conversion?

    20 mm: approx. 1150 grams

    25 mm: approx. 1600 grams

    35 mm: approx. 900 grams

    50 mm: approx. 900 grams

    75 mm: approx. 1000 grams

    100 mm: tbc

    152 mm: tbc

     

  • 5.16 - Which focus length you are rehousing?

    Right now we can deliver 20, 25, 35, 50, 75 mm. The 100mm and 152mm will be available from August 2014.

     

  • 5.17 - Will all the lenses have the same length?

    No.

  • 5.18 - Will the lenses in one set be colour matched?

    A colour matching is not possible, a yellow tone of some lenses can be eliminated.
    See Technical Information on  de-colorization 

  • 5.19 - Will there be a threading for screw-in filters?

    No!

  • 5.20 - Would you offer a custom case with high density foam for the set to store everything nice and tidy?

    No.

Lens Rehousing of Cooke Panchros
  • 6.1 - Are feet and meter scale interchangeable ?

    Yes

  • 6.2 - Can you cover the sensors of all digital cameras?

    The PS-rehoused Cooke Speed Panchro lenses cover N35/S35 film format, ARRI Alexa and Epic in 4K. However the lenses have a ‚natural‘ fade towards the corners.

  • 6.3 - Can you rehouse also other models ?

    We rehouse Cooke Speed Panchro, Kowa Anamorphic, Bausch & Lomb Super Baltar, Kinoptik and Schneider vintage lenses.

    For details on the rehousings please review the product brochure or the website.

  • 6.4 - Do you plan on any color for the gravings and markings ?

    No, all are white.

  • 6.5 - Does the position of iris and focus ring change ?

    Yes

  • 6.6 - Does the rehousing included a thread for screw-in filter ?

    No

  • 6.7 - Focus mechanism: will it retain its helicoidal system or are they cam driven?

    With the PS-rehousing each lens is fitted with a cam drive focus mechanism, including additional close focus functionality

  • 6.8 - How many witness marks will a lens have?

    We do detailed graded witness marks in feet or meter.

  • 6.9 - What is the lens mount after the rehousing?

    Positive lock / PL mount

  • 6.10 - What materials are used? How is the rehousing technically accomplished?

    The lens groups with the original mechanics are kept and then rehouse into CNC machined parts made from alloy and bronz.

  • 6.11 - What will be the nearest focus of my lenses after the P+S rehousing ?

    Here what we have measured as MoD from sensor plane to object:

    18mm: 0,13m

    25mm: 0,18m

    32mm: 0,23m

    40mm: 0,33m

    50mm: 0,4m

    75mm: 0,53m

    100mm: < 0,80m

  • 6.12 - Which weight has the lens after the rehousing ?

    18mm: 650 g

    25mm: 600 g

    32mm: 500 g

    40mm: 550 g

    50mm: 800 g

    75mm: 850 g

    100mm:  800 g

  • 6.13 - Why are some Cooke Speed Panchro 75mm lenses project a very yellowish picture ?

    The yellow color of the optics visible in particular at most 75 mm Cooke Ser. II / III lenses has its cause in glass type used back then. The glass type includes a share of Thorium and also emits radioactive. This (weak) radiation is detectable with the Geiger counter.

    We have dismantled the optics to identify the corresponding glasses. These glasses are also yellow. It is the front lens and a further lens.

    The type of glass with the Torium share has historically been replaced by an equivalent other glass type. Whether that was made by the company Cooke in the course of production is not known by us. But we've had lenses with newer serial numbers that already have multi-coating and are not yellow.

  • 6.14 - Will my Panchros have a marco / close focus after the rehousing ?

    Yes, the macro / close focus is included in the rehousing.

    On request rehousing can be done without macro ability.

Lens Rehousing of Kowa Anamorphics
  • 7.1 - Are feet and meter scale interchangeable?

    Yes.

  • 7.2 - Can I use a clip-on matte box with the converted Kowa Anamorphics?

    Yes, it is possible. The lenses have an 80mm front lens diameter. With an step-down ring to 80mm a clip-on matte box can be attached.

  • 7.3 - Can you offer a Panavision lens mount for the Kowa Anamorphic lenses?

    Yes, this is possible on request.

  • 7.4 - What is the lens mount after the rehousing?

    Positive lock / PL mount

  • 7.5 - Which weight is added to the lens by the rebarreling?

    Approx. 200 grams per lens (100mm)

Lens Rehousing of Schneider lenses
  • 8.1 - Are the lenses all the same length?

    No, but the distance between the gears is the same. The lenses have a very compact lightweight design to fit to the new small cameras and accessories.

  • 8.2 - Are the lenses checked for fungus and thoroughly cleaned with fungi-stopping baths before rehousing?

    We offer lens services on different levels as additional services. An anti fungi treatment is common.

    Pls. see Technical Information Polishing – Grinding – Re-Coating – De-coloration

    Pls. See our Technical Information about how we judge lenses and suggest lens service.

  • 8.3 - Can I change feet to metric scales?

    Yes.

  • 8.4 - Can you cover the sensors of all digital cameras?

    We cover N35/S35 film format, Alexa and Epic in 4K. However the lenses have a ‘natural’ fade towards the corners.

  • 8.5 - Can you rehouse also other models?

    By now we can guarantee to rehouse the lenses stated on the flysheet. Other lenses need to be sent in for evaluation.

  • 8.6 - Do you plan on any colour for the engravings and markings?

    No, all engravings are white.

  • 8.7 - Does the barrel shift while focusing?

    The focus mechanism is a new design. It is an internal focus which means there is no barrel shift. The mechanism is a modern cam drive design. The glass block is not rotating.

  • 8.8 - Does the focus and iris position change?

    Yes, focus gear is on the front side.

  • 8.9 - Does the serial numbers stay the same?

    Yes

  • 8.10 - Focus mechanism: will the lens retain its helicoidal system or will they be cam driven?

    Cam Driven.

  • 8.11 - How about the coating and fungi treatment?

    1) coating, fungus, cementing will be checked at receipt and recommendation given

    2) uncoating on request possible

  • 8.12 - How long is the warranty?

    12 month on mechanical parts by P+S Technik

  • 8.13 - How many witness marks will the lens have?

    We do detailed graded witness marks in feet or meter.

  • 8.14 - How much will the rehousing for the Schneider lenses cost?

    The price is planed be the similar as for the Panchro rehousing. The fixed price will be available at IBC 2014. 

  • 8.15 - Is the focus shift completely eliminated and will not represent itself after a while?

    Yes

  • 8.16 - Is the focusing mechanism based on a cam drive?

    Yes

  • 8.17 - What is the lens mount?

    PL mount (Positive Lock)

  • 8.18 - What will be the front diameter?

    The front diameter will be the same on every lens. We plan an 80 mm or 87 mm front diameter. A filter thread is not planed.

  • 8.19 - What's the final size/weight of the lens and what materials are used? How the rehousing technically is accomplished?

    The lens groups with the original glass fittings are kept. We rehouse them into CNC machined parts made of aluminium and brass.

  • 8.20 - Which weight has the lens after conversion?

    18mm:   approx. 550 g

    25mm:   approx. 500 g

    32mm:   approx. 550 g

    40mm:   approx. 500 g

    50mm:   approx. 630 g

    75mm:   approx. 750 g

    100mm: approx.1200 g

  • 8.21 - Which will be the technical specifications?

    Mechanical same as our Cooke Panchro rehousing, but we will reduce weight of the lenses a little more.

  • 8.22 - Will the lenses have a close focus range after the rehousing?

    Yes, every lens will come with a close focus range.

     

    18mm: 0,13m

    25mm: 0,18m

    32mm: 0,23m

    40mm: 0,33m

    50mm: 0,40m

    75mm: 0,53m

    100mm: < 0,80m

  • 8.23 - Will the lenses in one set be colour matched?

    A colour matching is not possible, a yellow tone of some lenses can be eliminated.
    See Technical Information on  de-colorization 

  • 8.24 - Will there be a threading for screw-in filters?

    No.

  • 8.25 - Would you offer a custom case with high density foam for the set to store everything nice and tidy?

    We have a very nice foam for 6 lenses which comes as a gift with the return delivery. We can offer an aluminium case for 6 lenses or a high-quality trolley case for 6-8 lenses.

Lockport
  • 9.1 - Can a LockPort fit different camera models not available on the list ?

    The LockPorts are designed to fit exactly dedicated camera shapes offering maximum strength to mount the HDMI adapters without any play.

  • 9.2 - Can I change the camera battery without dismounting the LockPorts?

    -          ­Yes! LockPort design knows how important a battery change in the middle

    of a shooting will be!

  • 9.3 - Can I change the tilt angle during a shot?

    The system is designed to work with fixed tilt angles. With some experience you
    might also be able to tilt in a shot, but this needs some experience. We've heard
    about DoPs doing this.

  • 9.4 - Can I still use the audio connectors on my camera when the LockPort DUAL is mounted?

    Yes, the audio connectors are accessible when the LockPort DUAL is mounted to the camera.

  • 9.5 - Can I still use the power input socket of the BM Pocket camera when the Lockport Pocket is attached to the camera ?

    The input power socket of the BM Pocket is a fat connector and maybe need to be cut a little on the side to go thru....

    Other customers, on our suggestion, changed the fat power connector with a more professional and compact one to have more room to go in...

    Space and room in the pocket are really tight...

  • 9.6 - Can I upgrade my exisiting LockPort to LockPort DUAL?

    No, the older LockPort models cannot be upgraded to LockPort DUAL.

  • 9.7 - Can I use my LockPort 5 or 7 without a RedRock Micro DSLR baseplate ?

    The LockPort 5 or 7 are designed to work only like an upgrade of the top plate of the RedRock Micro DSLR baseplate.

  • 9.8 - Can I use the LockPort (all models) with my camera battery grip ?

    The LockPort cannot work with a battery grip on any camera

  • 9.9 - Does the LockPort work properly with HDMI external recorders?

    LockPorts adapters and cables work perfectly with external recorders.

  • 9.10 - I bought a Lockport universal for my Canon EOS 5D MK II. Can I use it on a 5D MK 3?

    An UPGRADE KIT for the LPUFK is not available, because it needs a new baseplate and a smaller HDMI connector. The Cannon 5D MK3 is smaller than the old MK2.

    Anyway we can supply all the parts your customer needs in a SPECIAL UPGRADE ORDER for Euro 69,00 list price (P+S price 48,30).

  • 9.11 - Is the Lockport compatible with a vertical or battery handgrip for my DSLR camera?

    The Lockport was originally developped for video recording with DSLR cameras and direct HDMI output.

    So the Lockport concept is not compatible with a vertical or battery handgrip.

    Nethertheless the battery compartment is always accessible with the Lockport or Birdcage port protection attached to your camera.

  • 9.12 - Is the SKATER Mini only meant for table top work?

    The design comes from a table top background. But more and more the SKATER
    Mini is also being used in feature and documentary work, especially on locations
    which are hard to reach. If you have to walk up five flights of stairs it might be
    easier to just take the SKATER, two apple boxes and a board than to bring a dolly
    and tracks up there.

  • 9.13 - Lockport GH4: Why didn't you reverse the hdmi plug in (from the front, beside the lense)? The way you did it makes it impossible to rotate the gh4 screen?

    We tested longly also the FRONT OUTPUT and there is still a interference with the swivel LCD monitor (and still cannot rotate).

    The LockPort GH4 was designed for shooters looking for a 4K output (asking of rear output) for external 4K recorders and using electronic viewfinders.

    I can understand your point of view...but with a swivel monitor and a side HDMI port output - this is not an ideal camera layout.

  • 9.14 - My RedRock Micro DSLR baseplate has monilitic design, can I still mount the LockPort 5 ?

    The early generation of RRM DSLR baseplates did not had the choice to disassemble the top plate which can be now replaced by our dedicated LockPort solution.

  • 9.15 - What happens with a LockPort mounted on my camera without the cable connected ?

    -          ­With a LockPort mounted and no cable connected, the camera  works exactly like when is without it.  Full functionality!

  • 9.16 - What’s the difference between normal LockPorts and the “Z” edition ?

    LockPort “Z” series are designed for Zacuto Z-Finder users! It has as a special flat rear design to offer full mounting compability with the Z-Finder. Also you will find a small locking plate in the box to add strength to the Z-Finder mount.

  • 9.17 - When using the Lockport Pocket with my Blackmagic Pocket camera, how can I power the camera? Is the battery case or the power input port accessible?

    The battery case is accessible while the LockPort Pocket is attached. The 12V power port is blocked by the LockPort HDMI adapter.

  • 9.18 - Where can I find the LockPort 5/LockPort 7 mounting instructions ?

    In the LockPort section of our LockCircle website you can see a 9 step banner showing how to mount the LockPort 5 / 7 step by step!

PrimeCircle lenses
  • 10.1 - Could you tell if those Prime Circle lenses cover full frame 24x36mm?

    Yes, they cover full frame 24x36mm.

    All PrimeCircle lenses are based on high class Carl Zeiss still photography lenses.

PS-Zoom 18-35
  • 11.1 - Does the autofocus via the ef mount still work?

    No, the PS-Zoom 18-35 is a completely mechanical zoom lens.

  • 11.2 - Does the PS-Zoom 18-35 cover the 6K RED Dragon sensor?

    Yes, but with a limited zoom range. The PS-Zoom 18-35 covers 6K RED Dragon from focal length 21mm.

  • 11.3 - Is a Panavision lens mount available for the PS-Zoom lenses?

    No.

  • 11.4 - Is the lens your design or a rehoused Sigma 18-35mm?

    Yes, the PS-Zoom 18-35 is based on the Sigma 18-35, the mechanical design original by P+S Technik.
    We designed a high-quality, reliable housing with a professional cam-driven focus mechanism around this fast lens.

Skater Mini
  • 12.1 - Can I change the tilt angle during a shot?

    The system is designed to work with fixed tilt angles. With some experience you
    might also be able to tilt in a shot, but this needs some experience. We've heard
    about DoPs doing this.

  • 12.2 - Can you tell me the torque rating on SKATER Motor?

    The torque rating of the SKATER motor is 17 mNm.

  • 12.3 - Does the SKATER Mini replace a dolly?

    No, the idea is to use it whenever it is faster and more efficient. In most
    productions the SKATER Mini is required as well as a dolly and will be used for a
    few shots only. For fast removal of your camera head from a dolly, crane or tripod
    we have integrated a dovetail into the SKATER Mini, so you can easily make
    those changes without losing time on changing the sliding plates.

  • 12.4 - How precise is the repeatabilty of the SKATER Mini?

    If all wheel directions are precisely aligned, the SKATER is very precise. We
    recommend to always use calculated values for all scales, as they are much more
    accurate. Use the supplied rotation table or, even better, get a free download of
    the Rotation Calculator (available in Palm versions or as an Excel file,
    www.pstechnik.de). It will give you proper results.
    In any case it can be useful to mark the start and end point of a move with a
    marker. If there is a slight offset after a couple of takes, you can still re-position the
    SKATER according to the marks. Those marks will also help the camera assistent
    doing the focussing

  • 12.5 - Is the SKATER Mini only meant for table top work?

    The design comes from a table top background. But more and more the SKATER
    Mini is also being used in feature and documentary work, especially on locations
    which are hard to reach. If you have to walk up five flights of stairs it might be
    easier to just take the SKATER, two apple boxes and a board than to bring a dolly
    and tracks up there.

  • 12.6 - The object I'm filming is too high or too low, how can I adjust the lens height?

    One way is to change the vertical position of the object or the tracking surface. If
    the lens should be just a bit higher, change to the +/-30° rocker, which will
    increase camera height about 2 cm or 0.8 inch. If you need to go a bit lower, loose
    the sliding plate and the integrated dovetail and mount the camera directly onto
    the rocker.
    Another elegant way is the use of a straight borescope (see above) as it allows
    you to adjust a lens height by changing the tilt angle of a camera.

  • 12.7 - What kind of surface do I need?

    Just about any one will do. Make sure the board, platform, table or floor has a
    plain surface. If you have a solid surface but it has dents, just place a thin plain
    panel on top. Sometimes it’s only necessary to track a couple of inches to achieve
    the desired shot, so often the tracking surface doesn’t have to be extremly big.
    Also keep in mind that the wider your shot is, the less critical is the surface. If you
    are on a wide lens you might even get away with small dents or a slight
    uneveness on the surface.

Skater Scope
  • 13.1 - Can I use the SKATER Scope with anamorphic lenses?

    Yes.

    The anamorphic format is produced by the anamorphic front lens and the SKATER Scope basically "only" transport to image to the sensor. 

    Please keep in mind that some anamorphic lenses are heavy and might need additional support when used on the SKATER Scope.

  • 13.2 - What is the depth of field produced by the SKATER Scope?

    The depth of field in the image depends on the lens attached to the front of the SKATER Scope and the sensor size.

  • 13.3 - What is the lens speed of the SKATER Scope?

    The measured max. speed is 5.6.

    The aperture setting of the lens in front of the scope does only influence the light going through the system once the aperture settting is > 5.6

T-Rex Superscope
  • 14.1 - Dimensions of the T-Rex Superscope?

    The length of the T-Rex is

    from mount (camera side) to the rotation joint approx. 610mm

    from the rotation joint to the lens mount approx. 110mm

Ultimate Director's Finder UDF
  • 15.1 - Does the UDF cover 6K?

    No.

Xpander Lens
  • 16.1 - Could this Xpander Lens 21% give you the ability to use the Canon Super16 8-64 zoom on a red in 4k?

    No, the current version of the Xpander Lens is designed for the use with 35mm and better Super35 format cine lenses.

  • 16.2 - What is the difference between version 1.15 and 1.21 ?

    Basically the expansion factor and the resulting light loss is the difference.

    Version 1,15
    Image expansion factor: 15 % larger (nominal)
    Focal Length: X 1.15
    Light loss: 1/3 to ½ stop

    Version 1,21
    Image expansion factor: 21 % larger (nominal)
    Focal length 1.21
    Light Loss 1/2 to 2/3 stop

Nach oben