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pix2pixels
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Did anybody had a look into the possibility of using astro focal reducers with this camera?
Really worth exploring!
Really worth exploring!
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Also, as a further hint, check out the Cine Ektar 25mm lens. A dedicated reducer was made for it by Kodak.
Yes. Nikkorex camera had a wide and tele converter.is there such a thing as a focal reducer for nikon 35mm lenses?
Okay, here's my attempt at an essay answer to Professor Vivek's pop quiz:Question for you- what is the difference between an astro focal reducer and a photo/video wide angle converter?
Also, as a further hint, check out the Cine Ektar 25mm lens. A dedicated reducer was made for it by Kodak.
Thanks for the explanation. My personal conclusion is I'd rather wait for someone else to try that outBut here's a follow-up question about that 25mm Cine-Ektar: is its focal reducer a front-of-lens or behind-lens variety? Anyone got a picture of it?
I heard about that but never really thought about it much. So, just an example to make sure I get that right: I have a Canon FD 28/2.0 and a 85/1.8, both with 55mm threads - if I get one of these reverse coupling adapters in 55mm I can just stack them together and get a macro lens? Can I combine any lenses? How can I calculate what length and aperture I will be ending up with?This is based on the telecompressor principle.
Stacking two 50mm lenses front/front is one of the best macro solutions: much cheaper than a dedicated macro lens.
All this is completely different, though, from the astro 'focal length reducers' that mount behind the prime lens. I'm still curious to see whether these significantly increase brightness by reducing the size of the image. I still think fitting one into a Micro Four Thirds or DSLR camera would be a challenge... but a view camera with a digital back might be a good test case.