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173 reputation
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visits member for 2 years, 5 months
seen Jan 24 '13 at 20:55

Jun
16
awarded  Notable Question
May
25
awarded  Popular Question
Sep
25
asked How to tell Apple Aperture to store ALL files by reference?
Sep
24
awarded  Critic
Sep
22
revised Co-linear dual tripod mount for huge lenses
Adding moon shots
Sep
22
suggested approved edit on Co-linear dual tripod mount for huge lenses
Sep
21
awarded  Editor
Sep
21
revised Co-linear dual tripod mount for huge lenses
I am revisiting the answer by providing the real-world implementation of the suggestion given by the original author
Sep
21
suggested approved edit on Co-linear dual tripod mount for huge lenses
Aug
29
comment Co-linear dual tripod mount for huge lenses
I hear you, and that was the answer given in the other question, but the difference seems to me to be an important one: I'm not connecting the camera to the lens. I'm connecting lens -> T-ring -> teleconverter -> FT-1 adapter -> camera. That many components meaningfully lengthens the apparatus and alters the profile of the forces significantly, where the weight-bearing design considerations of each element are questionable to begin with.
Aug
29
comment Co-linear dual tripod mount for huge lenses
Oh good, so only 6x overpriced. Thanks, that diagram is exactly what I want. Not too keen on setting up a metalworking shop though...
Aug
29
accepted Co-linear dual tripod mount for huge lenses
Aug
29
comment Is higher ISO noise evenly distributed, or does it affect colors differently?
Andrew, I'm going to go out on a limb here, but I think the ISO ratings do indeed work that way: since each doubling of ISO doubles the sensitivity of the "film", an ISO of 3200 has been doubled 5x from 100, so the noise has also doubled 5x over, from (let's say) 1000:1 to 1000:32. Noise, blurriness, or darkness: pick 1!
Aug
29
awarded  Supporter
Aug
29
asked Co-linear dual tripod mount for huge lenses
Jul
13
awarded  Scholar
Jul
13
accepted Why do the Nikon V1 lens' websites seem to give different f-stops than the lenses?
Jul
13
comment Why do the Nikon V1 lens' websites seem to give different f-stops than the lenses?
Yes, thank you. Of course "aperture" is way beyond the scope of any question :) - I didn't consider that it could be controlled independently of zoom and the fixed glass of the lens; I now realize there is an iris within the lens to adjust the actual aperture diameter.
Jul
13
awarded  Student
Jul
13
comment Why do the Nikon V1 lens' websites seem to give different f-stops than the lenses?
When is the minimum aperture used, if the maximum is used at all levels of zoom?