Vlad SOARE wrote: > TLR is not a truly reflex camera - it suffers from parallax error, and the viewfinder is hard to see and use outside of the studio.
Not true!!! The Rolleiflex TLR has a patented frame that moves underneath the viewing screen to show the exact framing at all times as you focus. This was introduced on the Rolleicord in 1933 and thereafter on every Rollei TLR made. Other TLR manufacturers like Mamiya, Yashica, and others did not use this but opted for things like paramenders, etc. There are also brighter viewing screens which make them very easy to focus as well as prisms to allow you to view your image much like you would with an SLR. FYI, a reflex camera indicate that you are not looking at the subject directly but through a secondary device such as a mirror that reflects the image to the focusing screen of a TLR, or in the case of an SLR like your Mamiya, onto a 5 sided prism in the viewfinder. It has nothing to do with parallax. >On the other hand, the Mamiya 645AF that I was talking about handles exactly like a modern 35 >mm LR, the only difference being size and weight. It has a normal viewfinder, not a TLR-style >screen. It's like an overgrown 35 mm SLR, and you can even use it for reportage if your muscles >are strong enough. :-) Since I have used both the Mamiya 645AF and the newer 645AFD with both film and the Leaf digital back I have first hand experience with this system including all of the systems lenses which I have used, especially the 55-110mm zoom. I can tell you the pros and cons of each first hand from my own use. >The EOS 1RS seems like a good idea, and anybody who has ever used it seems to have liked it, >but the fixed mirror affects your exposure. Even if the effect is not very noticeable (as far as I >know, you lose just about two thirds of a stop), it still exists. The pellicle mirror is a semi-silvered coated with a 20/1000mm ultra-thin, vapor-deposited Mylar film. It reflect 1/3 of the light and transmits 2/3 to the film plane. Yes, there is a trade off when you use a pellicle v. "reflex mirror." >With a Mamiya 645AF you don't have to give in comfort (like you do with a TLR) or EV (like you do >with the 1RS). What comfort am I giving up with a TLR? I see the image at all times including the exact time of exposure, I have flash sync at all speeds with the leaf shutter, no mirror vibration to worry about, and yes there are auxiliary close lenses so I can macro work as well. I would advise you to try a TLR before you condemn them! Peter K * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
