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Hello,

I'm going to do a lens test for an upcoming TVC. Shooting on the Sony Venice so I'm looking for FF lenses. 

I'll be testing Zeiss Supreme and Radiance primes as well as Canon K-35's.

I'll have a subject to shoot and a small lighting setup.

I was wondering if anyone has a guide for how to go about the testing. What are the different variables I should be looking at? 

Thanks!

 

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Well, what do you want your commercial to look like? The point of testing to try out different ideas on how to get the look you want.

If you want a soft diffused look, try out different old lenses vs filters.

If you want a warm golden look, try out in-camera white balance vs gels on lights vs LUTs.

If you want a grainy look, try underexposing vs adding film grain in post. So on, and so forth.

It’s all related to what you’re trying to achieve, rather than just testing for no reason.

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On 1/12/2021 at 12:37 AM, Satsuki Murashige said:

It’s all related to what you’re trying to achieve, rather than just testing for no reason.

Exactly. 

I would try to test the lenses at different t/stops to try to notice the different performance wide open vs. stopped down, how they reproduce skin tones and different colors, how many optical aberrations show up when wide open, or how sharp they are at the intended shooting stop. I would also try to shoot in different lighting conditions, and use direct sources against the glass, or very bright sources on the frame, etc. to see how contrast is affected by them. With the Canons you may want to test all the different focal lenghts to see if they match each other, etc. as older lenses tend to be in worse shape and some of them didn't match at all even when they were new. 

But after all, it's all up to what you're trying to achieve, and your own taste. Bear in mind you may find both sets of Supremes quite sharp and contrasty (with the Radiance more prone to catch flares and veiling) while the Canon K35's are much older lenses with a distinct soft look and not so good performance below a T/2.0 or so. 

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