To be more precise: So a 50mm lens will appear to produce an image similar to a 75mm lens. A 100mm lens will appear to be the same as a 150mm lens, IN TERMS OF FIELD-OF-VIEW. IN TERMS OF DEPTH-OF-FIELD, 50mm lens will be similar to 50mm lens, and 100mm lens will appearato be the same as a 100mm lens. Veli Izzet Cigirgan > -----Original Message----- > From: owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx > [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of > Emily L. Ferguson > Sent: Friday, February 04, 2005 1:09 AM > To: List for Photo/Imaging Educators - Professionals - Students > Subject: Re: no question too stupid? > > Hmm. Shall we go back to the beginning? > > No, your lens will not be the same on your D70 as on a film > camera, because the sensor which collects the data of which > the image is composed is not the same physical size as a > piece of 35mm film. > > It is smaller. It is 25% smaller. It will make your image > look like the center 75% of what you would get if you were > shooting on to film. > > So a 50mm lens will appear to produce an image similar to a > 75mm lens. A 100mm lens will appear to be the same as a 150mm lens. > > This is great for long zooms, but a problem for wide angles. > If you routinely shoot around 24mm, you will need something > in the ballpark of a 17mm lens. > > Fortunately, it remains in the same 2:3 ratio of 35mm film, > although some may not agree that that's so fortunate.... > > If you routinely spend lots of satisfying time in your b&w > darkroom, you might want to take some courses in Photoshop, > because your computer will be the darkroom for the images you > collect with your D70. Your desktop inkjet printer may not > be very satisfying, but do not despair. There are fabulous > resources of papers, printers and inks for b&w printing. > > And you will save lots of water, as well as your lungs, > making the switch. > > However, you will spend lots of time learning and getting > control over all your new resources - possibly more time than > you spend in the darkroom! > > Welcome to the 21st century! > -- > Emily L. Ferguson > mailto:elf@xxxxxxxx > 508-563-6822 > New England landscapes, wooden boats and races, press > photography http://www.vsu.cape.com/~elf/ > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 265.8.5 - Release Date: 03.02.2005 > >
