Hi all,
I'm familiar with the kind of image a Petzval lens will make; how would the projection Petzval's images be different?
Given the same maximum aperture and same focal length, are there any significant differences in the images there two lenses make?
I know that the projection Petzval had a slightly different design, so are there also any ways to tell them apart by looking at the lenses?
Here's a B&L Petzval, a type I see often; projection or regular Petzval? Thanks
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