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davidivinci

Difference of ISCO Lenses for GH5

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If the rear glass is not cracked I’d say those marks are fine. In the future I’d advise using a rear clamp that has plastic set screws though so as to not over exert force on the rear, or you’ll dig into it more, and possibly crack the glass inside too. 

Not sure if there are infinity only versions, but I doubt it. Most of these lenses have a way to lock the focus (since once installed in a theater for projection you wouldn’t want them to accidentally go out of focus.) It might be that the locking mechanism is seized. Not a big deal if it is truly at infinity, because for any practical purpose, you need a variable diopter to focus anamorphic projection adapter setups. With such setups, you put both the prime and anamorphic at infinity and leave them there.

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EOSHD Pro Color for Sony cameras EOSHD Pro LOG for Sony CamerasEOSHD C-LOG and Film Profiles for All Canon DSLRs

wow, whoever used that lens before had some serious intent about the lenses not falling apart,  like caleb said its not really an issue if it is stuck at infinity focus, as a single focus solution will fix that. If its not at infinity focus you may have a problem. You may also have a problem if you wanted to use it dual focus till a single focus solution turned up. Depending how competent you are as a handyman, you could pull it apart. or get it serviced perhaps but that might cost near as much as you paid for it. 

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On 10/13/2019 at 10:58 AM, PeterA said:

Here's the lens and the metal indentations.

IMG_6186.JPG

IMG_6187.JPG

Looks like this lens was modified somewhere.   There are some little screws which can disassemble all parts.   I also mods it as no lock(re-drilled holes to make it) .   The rear big ring is not necessary.  It was for adapting to around 71mm(70.65?) projector lens.

 

isco_mount.jpg

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On 9/27/2019 at 5:09 AM, ken said:

I also like to mount this anamorphic lens and take photos vertically.  So just looks as normal, not widescreen. ?

1. F1.8

2. F5.6 (to get good flare, need to use small aperture)

 

eos_IMG_5038REC.jpg

eos_IMG_5006REC.jpg

Nice! :) 

Just tried it with ELMO II and Pana 35-100 (GH5 VLOG L). Interesting combo because autofocus sometimes helps double focus ;)

P1011744.thumb.jpg.dbd48e0cd5feab05c797be4d2f10c51e.jpg 

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On 10/15/2019 at 3:18 AM, ken said:

Looks like this lens was modified somewhere.   There are some little screws which can disassemble all parts.   I also mods it as no lock(re-drilled holes to make it) .   The rear big ring is not necessary.  It was for adapting to around 71mm(70.65?) projector lens.

 

isco_mount.jpg

Dude, does the 62mm step up fit on the Isco´s threads??

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I own a red Isco 2x version. some say that it has barely no flares.

But after several tests, I found that the flares really varies depending on what main lens you are using.

for example, with a cctv 50mm toy lens and SLR rangefinder, I got a really amazing horizontal and rainbow flare.

 

Screen Shot 2019-12-26 at 16.57.35.png

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