lct Posted March 13, 2009 Share #101 Posted March 13, 2009 Advertisement (gone after registration) I was right to think that i was wrong so i am right somewhere after all. Link to post Share on other sites More sharing options...
Advertisement Posted March 13, 2009 Posted March 13, 2009 Hi lct, Take a look here S2 and my impressions. I'm sure you'll find what you were looking for!
peterv Posted March 13, 2009 Share #102 Posted March 13, 2009 Sorry to add to the confusion here, I'm getting confused The original question in permalink 105 was: If the 70mm S lens was used on an r body (with a 36x24mm sensor)...what focal length would it be? So yes, there's no cropfactor for a 70 mm S lens on an S2 obviously... Now if you put this 70 mm S on a camera with a smaller sensor (the 24 x 36 R hopefully) of course it's still a 70 mm, but the effictive FOV will be that of a (1.25 x 70 =) 87.5mm lens in 35 mm terms, right? Someone please help me out here Link to post Share on other sites More sharing options...
wildlightphoto Posted March 13, 2009 Share #103 Posted March 13, 2009 Now if you put this 70 mm S on a camera with a smaller sensor (the 24 x 36 R hopefully) of course it's still a 70 mm, but the effictive FOV will be that of a (1.25 x 70 =) 87.5mm lens in 35 mm terms, right? No. a 70mm lens will have the field of view of any other 70mm lens, regardless of size of the lens' image circle. Link to post Share on other sites More sharing options...
peterv Posted March 13, 2009 Share #104 Posted March 13, 2009 Thanks Doug. But than how come a 75 mm M lens has the fov of a 100 mm on the M8? Link to post Share on other sites More sharing options...
Overgaard Posted March 13, 2009 Share #105 Posted March 13, 2009 I was right to think that i was wrong so i am right somewhere after all. You're completely right. Link to post Share on other sites More sharing options...
adan Posted March 13, 2009 Share #106 Posted March 13, 2009 Argggh!?! OK, Peter. 70mm on M8 = "93mm" in 35mm film terms. 75mm lens = "101mm" (the 5mm makes a difference) On a fullframe body (maybe the R10 - maybe not) there is no crop factor. 70mm = "70mm". It would be exactly like using the long end of a 35-70 or 28-70 zoom. On 4x5 film, it would be a superwide (about an 18-20mm equivalent to 35mm film) - although in reality you'd get a circular image with fuzzy edges that was "kinda wide looking" about 55mm in diameter, since the S lenses can't cover a whole 4x5. A 70mm designed for 4x5 would be a fully-functional superwide on 4x5 - and look just like the Leica 70mm if you could mount it on the S2 - and look just like a 70mm if you mounted it on an R9, and look just like a 70mm ("93mm") if you mounted it on the M8. Exact same image in all cases - you are just using a larger or smaller chunk of it, depending on the size of the sensor or film. Link to post Share on other sites More sharing options...
wildlightphoto Posted March 14, 2009 Share #107 Posted March 14, 2009 Advertisement (gone after registration) Thanks Doug. But than how come a 75 mm M lens has the fov of a 100 mm on the M8? The M8 is using a smaller part of the image circle so its angle of view is smaller. Link to post Share on other sites More sharing options...
elansprint72 Posted March 14, 2009 Share #108 Posted March 14, 2009 "A little learning is a dangerous thing; drink deep, or taste not the Pierian spring: there shallow draughts intoxicate the brain, and drinking largely sobers us again." First used by Alexander Pope (1688 - 1744) in An Essay on Criticism , 1709. I recommend The Ilford Manual of Photography, 1947 was a good edition. Link to post Share on other sites More sharing options...
Gentleman Villain Posted March 14, 2009 Share #109 Posted March 14, 2009 wtf are you people arguing about now? LOL this place is hilarious sometimes Link to post Share on other sites More sharing options...
elansprint72 Posted March 14, 2009 Share #110 Posted March 14, 2009 wtf are you people arguing about now? LOL this place is hilarious sometimes My thoughts exactly! Link to post Share on other sites More sharing options...
peterv Posted March 14, 2009 Share #111 Posted March 14, 2009 The M8 is using a smaller part of the image circle so its angle of view is smaller. Andy and Doug, thanks for the explanation, I was confusing angle of view with field of view... Link to post Share on other sites More sharing options...
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