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08-03-2014, 09:40 PM - 1 Like   #811
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QuoteOriginally posted by jacobsr Quote
Thanks for your reply rendition, for some reason I get "This content is currently unavailable" when I click on your Facebook link. I was wondering if the lenses would work individually by themselves (with an adapter of-course), I don't think I would be interested in those lenses if a separate rear element is required.

Jacob
Hi jacobsr:

Yeah sorry I think facebook is archiving my old albums/privacy, I'll look into it. Regarding the Keystone turret lenses, there are 3 FRONT lens but only ONE rear element. So you have the option is to pick one front len to work with one rear element. Otherwise you can go for second option, which retains all three front lens and rotate them for the rear element.

If you only pick ONE len, the other two lens will not work since there is no rear element, and thus you will need to find two other rear elements.


Also, you can add me on facebook https://www.facebook.com/profile.php?id=100008365150515 and I maintain a Super 8 on Digital group on facebook.

Rendition.

08-03-2014, 10:00 PM   #812
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QuoteOriginally posted by rendition Quote
hi jacobsr. it's the same camera that I modded the len. the len themselves are easy to remove but the rear element will need to take sometimes to remove.the lens are fixed focus and they are not in d-mount, so you end-option would be to adapt it to a D-mount using a spare D-mount ring; if not, go with body cap pentax Q.

Again, the album is here https://www.facebook.com/media/set/?set=a.1420552398233585.1073741876.100008...1

---------- Post added 08-02-14 at 02:55 PM ----------

Bolex K1 Kern-Paillard Vario-Switar 8-36mm f/1.9











Sample images




Something that I keep noticing as I browse the 8mm movies cam mods is how well built the old cameras appear to be. Are they as solidly made as they look?
08-04-2014, 12:07 PM   #813
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QuoteOriginally posted by MD Optofonik Quote
Something that I keep noticing as I browse the 8mm movies cam mods is how well built the old cameras appear to be. Are they as solidly made as they look?
Hi MD Optofonik:

Yes they are solidly made as they look. Build quality is excellent because, they are after all, cine lens. The glass quality is of the same if not exceed old vintage full frame glasses.
08-04-2014, 01:16 PM   #814
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QuoteOriginally posted by rendition Quote
Hi jacobsr:

Yeah sorry I think facebook is archiving my old albums/privacy, I'll look into it. Regarding the Keystone turret lenses, there are 3 FRONT lens but only ONE rear element. So you have the option is to pick one front len to work with one rear element. Otherwise you can go for second option, which retains all three front lens and rotate them for the rear element.

If you only pick ONE len, the other two lens will not work since there is no rear element, and thus you will need to find two other rear elements.
Thank you for the information rendition. I saw the photo in your post #775. Retaining all three front lenses and rotate them for the rear element is very interesting. But does that really work on the Q? Can you mount the assembly securely and rotate the lenses without getting things in the way?
Excellent work.
Jacob

08-04-2014, 02:25 PM   #815
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QuoteOriginally posted by jacobsr Quote
Thank you for the information rendition. I saw the photo in your post #775. Retaining all three front lenses and rotate them for the rear element is very interesting. But does that really work on the Q? Can you mount the assembly securely and rotate the lenses without getting things in the way?
Excellent work.
Jacob
Hi Jacob:

With my Keystone it is pretty hard to rotate the len while already mounted onto the camera (depend on how old/lubrication of the lens). With that being say, it's pretty easy to rotate the len while not being mounted.

I would say it is pretty interesting/not easy doing Keystone. Perhaps it is more easier doing other super8 cameras with only a single zoom len.

rendition.
08-05-2014, 01:58 PM   #816
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canon super16 15-150mm f/2

canon super16 15-150mm f/2 converted to c-mount















sample on pentax q at 150mm focal range

08-06-2014, 09:19 AM - 1 Like   #817
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Rendition, you should start your own company, binging all these lenses back to life. Not only for the Q but but also for Nikon 1, and some Micro four thirds. That way you not only have fun but also make some $$$$.

I could be one of your first customers.
Jacob
08-08-2014, 07:51 PM   #818
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QuoteOriginally posted by jacobsr Quote
Rendition, you should start your own company, binging all these lenses back to life. Not only for the Q but but also for Nikon 1, and some Micro four thirds. That way you not only have fun but also make some $$$$.

I could be one of your first customers.
Jacob
I wish. But I'm more of a hobby-ish and hoarder type :/

---------- Post added 08-08-14 at 07:54 PM ----------

here's a modding for Canon Zoom C-8 9.5-47.5mm f/1.8











Sample pictures





08-11-2014, 01:16 PM   #819
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Canon Eight C-8 13mm f/1.4 modding. It is pretty simple, just add a body cap, or you can attach a D-mount ring, if you have one. The mount is not in D-mount or C-mount but in Canon's propriety mount










Sample images, all taken at f/1.4 on pentax Q







08-12-2014, 08:15 PM   #820
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Looks like a nice lens. I will take one.
Actually I have been on the lookout for that one. Thanks for the info.

Jacob
08-13-2014, 12:42 PM   #821
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QuoteOriginally posted by theeggplanthunter Quote
25.4mm f1.5 C mount 16mm film lens, taken of an old bolex that had seen better days.

Lens has been dropped at least once (big dent in the filter ring) so the wide open behavior may be atypical of this lens. But I doubt it


f4? Depth of field was about a foot and a half at most.






The bokeh is pretty smooth at f8 and the scale focus is pretty much dead on.


f1.5, wide open. The depth of field is a few millimeters at best and everything is bloomed out. I wouldn't shoot at anything below f2.8, highlights and edges get blown. Unless you like the look...



All shots 12M jpg, 3star, IR filter, +1 sepia, -2 high key, +4 contrast, +2 fine sharpness, ISO 640. All images were taken at f8 unless noted. No shim seems to be needed for infinity focus.

1more lens from the old bolex, but it's a 90mm, so I don't know when I'll get to try it out.
Do you have and samples from the Wollensak lens that don't have effects added?
08-13-2014, 11:40 PM   #822
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Rollei SL83's Rollei Vario 7.5-60mm f/1.8





















Sample pictures.



08-14-2014, 06:47 AM - 1 Like   #823
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Chart updated
08-14-2014, 07:08 PM   #824
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Pentax M SMC 50mm 1:4 Macro

M 50mm Macro F5.6 Pentax OEM adapter, F4 pink and white.
Attached Images
View Picture EXIF
PENTAX Q  Photo 
View Picture EXIF
PENTAX Q  Photo 

Last edited by oscaletrains; 08-15-2014 at 05:27 AM.
08-15-2014, 10:08 AM   #825
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Pentax 110 18mm f2.8 stopped down

I've only just got the adapter for my Pentax 110 lenses today and had a quick play this afternoon. First up, the 18mm F2.8. This was taken hand held at 1/100th second. The lens was stopped down using the 'ring binder reinforcement' method and mounted to a cheap eBay PTX 110 - P/Q adapter. The picture is straight out of the camera but resized.
Attached Images
View Picture EXIF
PENTAX Q  Photo 

Last edited by 35millimeter; 08-15-2014 at 12:47 PM.
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