Hi It is possible to use ordinary Canon EF lenses with their range of digital SLRs, subject to a change in focal range. However, can anyone please say how the picture quality using lenses from ordinary film cameras compares with dedicated digital lenses?
I suggest the confusion arises because digital cameras now come with optical zoom, and this has been achieved by using one or two aspherical (=non-spherical) lens components.
Historically zoom lenses were developed for cine film cameras, these optical devices were very expensive and heavy.
A single aspherical lens can replace several of the many spherical lenses that work together in a zoom lens. This has happened in all digital zoom cameras. It reduces size and weight, and the zoom facility apparently outweighs the slight losses in optical performance. Look up 'aspherical lens' in Google.
IF it fits, it must be worth trying. But from what little i have picked up, the CCD in a digital camera is not normally the same size as a frame of 35mm film, but smaller.
A 35mm SLR lens unit is designed to focus the image on a frame of 35mm film.
While the lens unit of a SLR digicam is designed to focus the image on a smaller CCD.
As long as the focal distance (the distance between the back of the lens unit and the surface the image is projected on) for both lenses is the same, the image should be in focus on the CCD instead of the film.
So as you say, you may well find that the Digicam piccy is only the central part of the image the lens captures, giving a different focal length.
As for image quality, at the moment film cameras are ahead of digicams in terms of image quality/detail capture, so i would *expect* the film lenses to do a better job, but have no idea what difference using, in effect, the 'wrong lens' for a camera has. But if you already have the lenses, there is no harm in trying.
I was once told that traditional SLR lenses didn't always refract (or whatever it is they do!) at the same angle as digital lenses. This leads to lower quality pictures. Not being a camera whiz can't offer any more on that theory...sorry!
Have you checked Canon's vsite for the EOS 300D? It states Canon?s extensive lineup of over 50 EF lenses, ranging from ultra wide-angle to super telephoto, is fully compatible with the EOS 300D. Through advanced optical know-how and micron precision engineering, they deliver unprecedented performance that facilitates artistic expression and maximizes the potential of the EOS 300D.
You can use any EF lens with the 300D, but you can't use the dedicated Digital EF lens with a Canon EOS film camera. If you want a lot more info on this and other camera subjects I can't do better than this site. click here