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Did a sharpness test with my ISco Ultra Star/Moller32x2/B&H Projection lens


Henchman
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So as I'm getting ready to start shooting my micro budget feature, I decided to do a final test between those 3 scopes and a Voigtlander 40mm F2 as taking lens, wide open at F2.

Well, I was surprised.
I used the cover of a book at 40 feet.
The scope I expected to perform the worst, in fact was the sharpest of all three. I could read the title from 40 feet away.

Here are the picture.

Lens comparison_4.1.1.jpg

Original_1.5.1.jpg

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On 3/13/2021 at 9:23 PM, au8ust said:

The Isco Ultra Star should be a lot sharper. Maybe you got a bad copy that needed to be tuned up?

I've double checked the tuneup. I check the tuning of all my scopes. 

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  • 2 weeks later...

Spent time aligning the Isco. 

It's definitely sharper. 

Not as sharp as the B&h single focus though. 

Only downside with the B&h is i have to use a 50mm or more lens. 

The other 2 I can use my 40mm voigtlander. And the Isco can go to 35mm with the native 7artisans 35. But the artisan isn't terribly sharp itself. So I'm looking fur a 35mm mft pancake lense f2 or less 

With my.0.8x VD that gives me the equivalant of a 28mm

 

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