Guest tummydoc Posted September 27, 2007 Share #21 Posted September 27, 2007 Advertisement (gone after registration) Actually, the difference is quite noticeable. But let me not interfere with the pleasure people take in their math work. I'm learning that some really do prefer math to what they can actually see. The 90 frame lines give one a fairly good sense of where the picture edges will fall, not perfect but useful, whereas the 75 lines are way off at most distances. Cheers, Sean The math simply proves that your stated reason for the observed difference is erroneous. Clearly what I wrote did not dispute that the observed difference may be quite different, it merely offers a more possible explanation for it. Link to post Share on other sites More sharing options...
Advertisement Posted September 27, 2007 Posted September 27, 2007 Hi Guest tummydoc, Take a look here Advice needed on choice between 75 & 90. I'm sure you'll find what you were looking for!
Guest guy_mancuso Posted September 27, 2007 Share #22 Posted September 27, 2007 My personal feelings is have both focal lengths. For me the 90mm is used when I need the sharpest images and fast speed i go to my 90 apo , for enviromental portraits i grab the 75 lux. I like both focal lengths but the 90 framelines are far better and more accurate. Not sure i could recommend one focal length over the other , i just like them both for different things. There are a ton of great 75 and 90's out there and i have yet to hear any of them being referred to as dogs. I am big on buying it , trying it and selling it if i don't like it. It truly is the final answer. Link to post Share on other sites More sharing options...
wlaidlaw Posted September 27, 2007 Share #23 Posted September 27, 2007 My goodness if the 90 framelines are better than the 75, the 75 must be horrendous. The 90 framelines are good enough for my T-E 135 if you mentally crop the image a bit. I would guess at infinity the 90 framelines are about 105 to 110mm. I have a 75 Summarit on order but I am going to try to borrow a 75 of any ilk first to see if I like the EFOV. It may be too close to the 90 to go to the expense of another lens. Wilson Link to post Share on other sites More sharing options...
carstenw Posted September 27, 2007 Share #24 Posted September 27, 2007 Wilson, IMO the 75 and 90 are more different (at least in feel) than the 50 and 75, so it might well be worth having two. I would not have two Crons, nor would I have the 75 Lux/90 Cron combo, since they are too similar in this case. 75 Lux+75 Cron+90 Macro is my choice (although I still don't have the cash for the 75 Cron) Link to post Share on other sites More sharing options...
sean_reid Posted September 27, 2007 Share #25 Posted September 27, 2007 My goodness if the 90 framelines are better than the 75, the 75 must be horrendous. The 90 framelines are good enough for my T-E 135 if you mentally crop the image a bit. I would guess at infinity the 90 framelines are about 105 to 110mm. I have a 75 Summarit on order but I am going to try to borrow a 75 of any ilk first to see if I like the EFOV. It may be too close to the 90 to go to the expense of another lens. Wilson Wait until you try the 75 frame lines. Cheers, Sean Link to post Share on other sites More sharing options...
carstenw Posted September 27, 2007 Share #26 Posted September 27, 2007 Wait until you try the 75 frame lines. Cheers, Sean Yup, Sean is right. Look here: http://www.l-camera-forum.com/leica-forum/leica-m8-forum/31212-frameline-accuracy-comparison.html Link to post Share on other sites More sharing options...
Guest tummydoc Posted September 27, 2007 Share #27 Posted September 27, 2007 Advertisement (gone after registration) With the 50mm framelines permanently visible it isn't difficult to estimate very accurately with the 75mm lens...unless one is dogmatic to the point of obsession and believes that the only choices are trust the 75 corner brackets or dispense with the focal length altogether. A bit like tossing the baby out with the bathwater but to each his own. Link to post Share on other sites More sharing options...
Philinflash Posted September 27, 2007 Share #28 Posted September 27, 2007 George, the 75/90 decision should be a function of many factors. For instance, what other lenses will you be carrying? Personally, I initially ordered a 90 but downsized to 75 because I thought it was too big of a gap down to my next lens, a 35; it is close to a 2:1 relationship. I have been very happy with that choice. The 2 lenses work well together (same f-stop range, for instance). FWIW, the 75 is a terrific lens I do not agree with those posters who feel that the frameline issue is a major problem or that it should be a factor in your decision. If one starts with the premise that the RF framelines are no more than approximations, you won't be too disappointed. In practice, the 75 captures slightly more than the framelines suggest, but you quickly learn that. You can alway chimp the actual capture if you have any uncertainty. The 90-mm lens will frame a bit tighter, but I like the 75. Philip Kozloff Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted September 27, 2007 Share #29 Posted September 27, 2007 75mm pretty much take a step forward. It's not as accurate as the 90mm but I don't find it a issue at all. Just adjusting your brain Link to post Share on other sites More sharing options...
Woofer Posted September 28, 2007 Share #30 Posted September 28, 2007 Hi there to all who replied Thank you so much for your imput , I'm OK with the frameline issue , and the step foward for the 75. As is always the case , I'll have to make the decision myself , but I did enjoy talking it over , looks like the 75 (or perhaps the 90 , joking) Also want to say how much I realy value this forum , I don't post often , but I folow it every day. Regards George Link to post Share on other sites More sharing options...
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