Jump to content
Julian

Blackmagic Pocket Cinema Camera c-mount lens compatibility list

Recommended Posts

Which Schneider 10 mm did you test? The black or the silver one? And why do you think the Century 9mm to not be a good lens? Thanks

 

Silver one. The Century 9mm is very unsharp/foggy unless stepped down.

Share this post


Link to post
Share on other sites
EOSHD Pro Color for Sony cameras EOSHD Pro LOG for Sony CamerasEOSHD C-LOG and Film Profiles for All Canon DSLRs

I'm a little confused, reading some forum I found that the c-mount have trouble focusing on m 4/3. what scares me the time to invest in for example a Carl Zeiss Tevidon 10, someone can confirm or deny these problems? ... my doubts grew to find this article. I have not I really wanted to make DIY lenses for not getting accurate focus.

 

http://www.ebay.es/itm/Carl-Zeiss-Jena-Tevidon-16mm-1-8-c-mount-modified-for-M4-3-Olympus-Panasonic-/190832560740?pt=LH_DefaultDomain_101&hash=item2c6e81ca64

Share this post


Link to post
Share on other sites

I'm a little confused, reading some forum I found that the c-mount have trouble focusing on m 4/3. what scares me the time to invest in for example a Carl Zeiss Tevidon 10, someone can confirm or deny these problems? .

 

Tevidons don't fully screw into Micro Four Thirds Adapters unless modified, and thus don't reach infinite focus. That's the case with a lot of c-mount lenses (for example, most unmodified Fujinons).

 

General advice for people reading this thread: Don't buy a c-mount lens unless you are 100% sure that it [a] fits the adapter and  covers 1". Odds that you will be lucky are very, very low. 

Share this post


Link to post
Share on other sites

Angenieux 10mm f/1.8 Retrofocus

 

Julian already classified this as a Yes (with dark corners) and has a link to my image of it at f/1.8, but I would like to add a few words.

You can find a lot of these lenses on eBay these days, starting around $200. Is it worth consideration at all?

This is, as you know, a fixed focus lens which was a very popular lens for handheld camerawork on 8 and 16mm. You just set the aperture and ran with it.

The downside: it only works when you have enough light. Although this is a very fast lens with f/1.8, wide open practically EVERYTHING is out of focus, infinity starts getting sharp around f/4, and the foreground around f/8.

So here are some images at different apertures, just so that you get an idea what this lens is like:

(There will be slight dark corners up to f/4, but as you probably won’t be using it until f/8, you shouldn’t have any problems.)

 

f/1.8: Everything is out of focus.

The plant in the front is about 1m (3 feet) from the camera. f/2.8 is pretty much the same.

 

 

f/4: The background is reasonably sharp, but the foreground is still soft.

 

 

f/8: Now, this starts to look usable! The foreground is reasonably sharp now.

 

 

f/11: Not bad at all, please look at the full size image to form your own opinion. f/16 is pretty much the same as this. Is it sharp enough for you?

 

Share this post


Link to post
Share on other sites

@Richard: is that the same lens as this one? http://verybiglobo.blogspot.nl/2012/03/nex-7-carl-zeiss-jena-ddr-10mm-f2.html
hat guy seems to put it on a C-mount to NEX adapter without modification. But maybe the M43 adapter is different?


Sorry for the delay in replying.
Yes it is the same lens. It feels nice an solidly built. A handsome little little fellow dare I say.
However I think that most C-Mount to NEX adapters can accept lens diameters up to 44mm.
Some stepped C-Mount to MFT adapters can can except diameters that exceed 37mm but at that point the lens is held further away from the sensor and (in some lenses at least) the focus to infinity problem occurs. It's a shame because I was hoping that I could also use this lens with my V1 but that has a similar restriction due to to mount diameter. My initial thoughts are to fabricate a new back plate for the lens from an adapter plate. That would actually increase the available diameter as the support around the recess would then not be needed. All this is theory right now but I will keep you posted. It will be a while though as I'm very busy right now.

Share this post


Link to post
Share on other sites

Thanks for the update Richard, i'll add the info to the topic start!

 

@Pulp Writer: good stuff to know. So the lens is fixed focus and focussed at a pretty far distance I suppose? Personally I wouldn't spend $200 for this kind of results.

Share this post


Link to post
Share on other sites

Bottom line: c-mount lenses <25mm that aren't explicitly specified for 1" might somehow cover the 1"/s16 sensor, but typically with strong blurs at the left and right corners of the image. In that light, the information in this thread has to be taken with a grain of salt.

 

Thanks for your tests! I do agree that the fact if it 'works' doesn't really mean much yet. Once the BMPCC's are being delivered it would be nice to extend this topic with actual samples and more information about the quality of the optics.

Share this post


Link to post
Share on other sites

Sorry for the delay in replying.
Yes it is the same lens. It feels nice an solidly built. A handsome little little fellow dare I say.
However I think that most C-Mount to NEX adapters can accept lens diameters up to 44mm.
Some stepped C-Mount to MFT adapters can can except diameters that exceed 37mm but at that point the lens is held further away from the sensor and (in some lenses at least) the focus to infinity problem occurs. It's a shame because I was hoping that I could also use this lens with my V1 but that has a similar restriction due to to mount diameter. My initial thoughts are to fabricate a new back plate for the lens from an adapter plate. That would actually increase the available diameter as the support around the recess would then not be needed. All this is theory right now but I will keep you posted. It will be a while though as I'm very busy right now.

 

I have found this bajonett-replacement for Tevidon prime lenses on Ebay:

http://www.ebay.com/itm/Zeiss-Tevidon-C-Mount-Adapter-Mount-/251263450304?_trksid=p2047675.m1982&_trkparms=aid%3D333005%26algo%3DRIC.FIT%26ao%3D1%26asc%3D177%26meid%3D7420819031957811323%26pid%3D100009%26prg%3D1088%26rk%3D1%26sd%3D370791912272%26

 

Has anyone tried this yet?

Share this post


Link to post
Share on other sites

That looks interesting Kenny!

Does anyone know if the front filter thread of a Tevidon 25mm f/1.4 rotates during focus? If not, it might be an interesting lens to use with anamorphic lenses on the BMPCC.

Share this post


Link to post
Share on other sites

I have found this bajonett-replacement for Tevidon prime lenses on Ebay:

http://www.ebay.com/itm/Zeiss-Tevidon-C-Mount-Adapter-Mount-/251263450304?_trksid=p2047675.m1982&_trkparms=aid%3D333005%26algo%3DRIC.FIT%26ao%3D1%26asc%3D177%26meid%3D7420819031957811323%26pid%3D100009%26prg%3D1088%26rk%3D1%26sd%3D370791912272%26

 

Has anyone tried this yet?

 

I ordered it last week for my 10mm Tevidon and will post an update here as soon as it has arrived.

Share this post


Link to post
Share on other sites

Hi All, really useful thread.

Just waiting on some C mount adapters to arrive and I will add my lenses results to the list.

One thing I don't think has been fully addressed is the quality and accuracy of the adapters.
In order to achieve correct flange depth they have to be accurate to at least 1/100th of a millimeter ( possibly even 1/1000th )
I've also noticed on my C to Nikon 1 adapter is off centre. Vignetting is always greater in the top corners rather than the bottom, suggesting the C mount hole is above centre. (Could also be that the sensor is mis aligned, but i'm more inclined to trust Nikon than the adapter)

Given that most adapters are really cheap it may be worth us sharing info on the adapters we are using.
It won't have much effect on sensor coverage but will have a big effect on ability to focus, barrel distance marks and overall focus issues.

I have a couple cheapies on order from Ebay but they may well come from the same workshop in China so may be identical. We'll see...
I also have the much more expensive Metabones adapter on it's way which seems to have a very wide base for the lens. Again we'll see...

My initial thoughts are to fabricate a new back plate for the lens from an adapter plate. That would actually increase the available diameter as the support around the recess would then not be needed.

Julian, wouldn't you be better off modifying an adapter rather than your lens?
Cheaper to replace an adapter than a lens?

Share this post


Link to post
Share on other sites

The c-mount adapters are pretty small. There's not much excess metal you can remove to make a lens with a bigger 'bottom' fit, probably it's not always possible to modify an adapter enough to make it work.

 

I only have cheap china C-mount adapters. With 25mm lenses it works fine, it doesn't really mater if it is not 100% perfect I suppose. If the coverage of the lens is big enough, it doesn't matter if it is a bit off center. It might be crucial for lenses that almost work.

 

All my tests have been done with those cheap adapters. I don't think a perfect adapter would make much difference. But it would be good to see some comparisons!

Share this post


Link to post
Share on other sites

I guess what I'm getting at is that for wide angle lens' adapter manufacturing quality does start to matter.

With a small sensor wide lens' are very intolerant of back focus errors.
The B&H Angenieux 10mm f1.8 is a fantastic lens. They cost a fortune when they were new.
The lack of focus wide open in the test shot back in post #88 could well be down to incorrect flange depth.
I put more faith in Pierre Angenieux than I do in a $10 C mount adapter!

I don't have a C to M43 to test this but I do have a cheapo ebay C to Nikon 1 adapter for my J1.
I'll put my Ang 10mm on my J1 and check it against a focus chart and see.

Share this post


Link to post
Share on other sites

Test with a just-bought Canon TV16 13mm/1.5: A good lens, but very blurry left and right sides at f1.5 to f2.8, usable at f4 and clean at f5.6-f16 (at f22, diffraction makes the lens blurry as a whole).

 

Unfortunately, I can't show the test images here because my upload quota is exhausted.

Share this post


Link to post
Share on other sites

I have found this bajonett-replacement for Tevidon prime lenses on Ebay:

http://www.ebay.com/itm/Zeiss-Tevidon-C-Mount-Adapter-Mount-/251263450304?_trksid=p2047675.m1982&_trkparms=aid%3D333005%26algo%3DRIC.FIT%26ao%3D1%26asc%3D177%26meid%3D7420819031957811323%26pid%3D100009%26prg%3D1088%26rk%3D1%26sd%3D370791912272%26

 

Has anyone tried this yet?

 

 

I ordered it last week for my 10mm Tevidon and will post an update here as soon as it has arrived.

 

My lens came with this mount already attached. It is this adapter that increases the diameter.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Content

    • By Sandeepthefifth
      Hey all, I'm looking to shoot a narrative short film with controlled lighting early next year and am thinking about shooting it on my original BMPCC...
      I know, I know. No 4K, terrible low-light, and horrible battery life. But if 1080p was fine, controlled lighting throughout, and an external battery solution, is it better for me to use the original and cancel my 4K pre-order? I could use the money saved to pay for an additional cine prime/actually pay actors a decent wage...
      What would be the advantages in this case of using the 4K over the original?
    • By jorgelibra
      C100 Mark II + Extra Battery (Original) + HardCase in perfect condition
      Price: 2800 + Shipping.
      I'm based in Spain but I can ship everywhere, shipping costs are around 50-100 and it will travel in the HardCase (included in the price) so it will be just fine :)
      This is the most reliable camera that I've ever used. ND's included, natural cinematic colors, Dual Pixel, amazingly detailed 1080p from an internal 4K downsampling process (made in camera), dual slot sd card recording, etc etc, just 100 % proffesional.
      I'm selling it just because I allways work with a cameraman which is fully equiped, so I'm not using mine enought.. ¡sadly!





    • By Bozzie
      Panasonic GH2 + Flowmotion V2.02 Hack. Color Graded to taste. Download my BozGH2Pana_GT Film LUT for Panasonic GH2 Cameras HERE: https://bulentozdemirfilms.wordpress.com/downloads/bozgh2pana-gt-film-lut/
      Music: Ross Bugden - Dawn
       
    • By Alex T
      I'm looking to swap my Zeiss ZF.2 lenses for the equivalent Canon mountable Zeiss ZE lenses.
      Each of my lenses comes with 16:9 adaptors (which adapt the lenses to EF bodies, with de-clicked aperture and AF confirmation). 
      I have the following ZF.2 lenses: 21mm f/2.8, 35mm f/2.0, 50mm f/2.0 (Makro Planar), 100mm f/1.4 (Makro Planar).
    • By DIGICHombre
      Nippon Kogaku Japan Cine-NIKKOR 25mm F/1.8 wide angle lens. Close focus up to 2 feet / .6 meter.
      Nippon Kogaku Japan Cine-NIKKOR 10mm F/1.8 wide angle lens. Close focus up to 1 foot / .3 meter.

      Bought on eBay, used with C-Mount to Micro Four Thirds lens mount on Blackmagic Micro Cinema Camera. 
      Optically in excellent condition. Inside no specks of dust, haze, oil scratches that I can detect. Clicks work as expected. Focus is smooth.
      Cosmetically clean on outside. Very good for its age. 

      Close focus up to 2 feet / .6 meter. Very light weight, and tiny size. Smallest lens I've ever owned. Paired with BMMCC or BMPCC this makes a fantastic combination. BMMCC / BMPCC is super 16 sensor so I didn't need a speedbooster, and no vignette. I would expect to see vignetting on any sensor size larger than super 16.

      EXTRA
      Comes with a 40mm Switar C-mount lens, Metabones MFT to C-mount adapter.
      SELLING as a complete set. Asking $570 OBO.
       







×
×
  • Create New...