I know this will cover 5"x5" straight on, but has anyone tried it on a 5x7? If the last 1" on the short sides goes to the worms thats OK but I was wondering if these lenses have mechanical vignetting that would cut the image off?
Thanks!
I know this will cover 5"x5" straight on, but has anyone tried it on a 5x7? If the last 1" on the short sides goes to the worms thats OK but I was wondering if these lenses have mechanical vignetting that would cut the image off?
Thanks!
Last edited by John Kasaian; 28-Jan-2007 at 22:40. Reason: too long!
"I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority"---EB White
There was a huge amount of variation among the AM Pentacs, but they will illuminate 5x7. Corners on most AM Pentacs will be quite fuzzy, but not so with the original Dallmeyer Pentac.
Thanks Jason!
"I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority"---EB White
All the ones I've used do pretty well on 5x7. I've even used front tilt with some of the Air Ministry lenses with no problem. Lots of fun!
Thanks william!
I suppose it is simply a matter of the "luck of the draw" when it comes to Pentacs with the Dallmeyer being a shoe-in, then?
"I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority"---EB White
John,
A bit of what I have learned obsessively buying Pentac lenses: Assuming you want a sharp lens your best bet is to try to find an AM Pentac with a removable flange. These lenses were made by Dallmeyer and mounted in his factory. These have removeable elements (not burnished in, so the omnipresent haze between the first and second groups can be easily cleaned) and a standard 77mm filter thread. For all intents and purposes these are identical to those lenses made by Dallmeyer for the commerical market except they (usually) aren't branded. Failing that, the AM lens with an integral flange but the initials JHD stamped in white on the side of the barrel appear to have glass made in Dallmeyer's factory but were mounted elsewhere. These seem to be better quality glass, but often the mounting is poor resulting in a bit of spherical aberration and reduced coverage.
Thank you Jason, that gives me a better idea of what to look out for!
"I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority"---EB White
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