Cannon Rebel

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Don - 23 May 2005 17:07 GMT

I have an old Cannon Rebel 35mm that I never use. Am I right in assuming I
can use all my old lenses with the new digital rebel? Ive noticed digital
lenses for sale...............what are those?

Reply to this Message

Travis Newbury - 23 May 2005 19:12 GMT

> I have an old Cannon Rebel 35mm that I never use. Am I right in assuming I
> can use all my old lenses with the new digital rebel? Ive noticed digital
> lenses for sale...............what are those?

Yes they should fit fine. But remember there is a 1.6 magnification
because the ccs (or cmos) is not full frame in the digital rebel or
digital rebel xt.

Signature

-=tn=-

Reply to this Message

muzz285 - 23 May 2005 19:47 GMT

>I have an old Cannon Rebel 35mm that I never use. Am I right in assuming I
>can use all my old lenses with the new digital rebel? Ive noticed digital
>lenses for sale...............what are those?

Don,
the digital rebel will take standard EF mount lenses, as used on your old
film rebel. However, because the sensor used in the DRebel is smaller than a
35mm film frame, there is a cropping factor to consider.

This means that the available field of view is less with a DRebel than with
a 35mm film body - in effect this means that you must multiply a given
lens's focal length by 1.6 to get the effective focal length (e.g. a 50mm
lens behaves more like an 80mm lens on the DRebel.)

Furthermore, lenses made specifically for DSLRs can be made with smaller
lens elements. This saves weight and cost (it would be nice if lens
manufacturers passed this saving on to their customers.)

Canon have designated their digital-specific lenses EF-S. These lenses, and
indeed third-party "digital" lenses must only be used on APS-C sensor-sized
DSLRs, because they would cause heavy vignetting (shading) around the edges
of images if used on 35mm film or full-frame sensor cameras. I believe that
Canon's EF-S lenses actually will not fit a film body, due to a rubber
"bumper" washer around the back element.

Hope this helps

Muzz

Reply to this Message

open - 29 May 2005 17:57 GMT

>I have an old Cannon Rebel 35mm that I never use. Am I right in assuming I
>can use all my old lenses with the new digital rebel? Ive noticed digital
>lenses for sale...............what are those?

NO- Film Lenses do not work well on Digital! The reason is the focal
lengths of the different colors of light. To get a really sharp
picture with digital you HAVE to use a digital lens, otherwise you
must ALWAYS stop down to about f9.5 or smaller. Film emulsion is on
three focal planes with emulsion separators, while digital is on one
focal plane.

If, on the other hand you don't care about sharpness and/or do not
ever intend to enlarge a print, then you can do double duty with the
lenses.
Good luck

Reply to this Message

Mr. Mark - 29 May 2005 21:44 GMT

> NO- Film Lenses do not work well on Digital! The reason is the focal
> lengths of the different colors of light. To get a really sharp
> picture with digital you HAVE to use a digital lens, otherwise you
> must ALWAYS stop down to about f9.5 or smaller. Film emulsion is on
> three focal planes with emulsion separators, while digital is on one
> focal plane.

Can you provide a link to back that statement up? I've never heard that
"film" lenses are designed to focus the different wavelengths to make up for
the incredibly thin thickness of film. I shoot black and white, are you
saying I won't get sharp photos because I only have 1 layer of emulsion?

Signature

Mark

Photos, Ideas & Opinions
http://www.marklauter.com

Reply to this Message

Mike Kohary - 29 May 2005 23:42 GMT

> NO- Film Lenses do not work well on Digital! The reason is the focal
> lengths of the different colors of light. To get a really sharp
[quoted text clipped - 6 lines]
> ever intend to enlarge a print, then you can do double duty with the
> lenses.

This post is completely false - ignore it. My standard Canon EF "L" lenses
work beautifully on my 20D - tack sharp and beautiful color.

Signature

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Mike Kohary mike at kohary dot com http://www.kohary.com

Karma Photography: http://www.karmaphotography.com
Seahawks Historical Database: http://www.kohary.com/seahawks
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Reply to this Message

Unspam - 29 May 2005 23:53 GMT

>> I have an old Cannon Rebel 35mm that I never use. Am I right in assuming I
>> can use all my old lenses with the new digital rebel? Ive noticed digital
[quoted text clipped - 11 lines]
> lenses.
> Good luck

I don't think that's correct, I have canon L lenses with a 1ds and they
appear to be focused and sharp.

Reply to this Message

RSD99 - 30 May 2005 21:09 GMT

"open" posted:
"...
To get a really sharp
picture with digital you HAVE to use a digital lens, otherwise you
must ALWAYS stop down to about f9.5 or smaller. Film emulsion is on
three focal planes with emulsion separators, while digital is on one
focal plane.
..."

Total unmitigated bull-sheite.

It shows that you have zero to negative knowledge of physics, optics, or
modern cameras and camera systems.

"Full frame" (e.g., "non digital" lenses) are virtually *always* higher
quality, and will work excellently with digital cameras.

> >I have an old Cannon Rebel 35mm that I never use. Am I right in assuming I
> >can use all my old lenses with the new digital rebel? Ive noticed digital
[quoted text clipped - 11 lines]
> lenses.
> Good luck

Reply to this Message

MarkR - 31 May 2005 16:51 GMT

As others have said, any Canon EF compatable lens will work on the digital
rebels.

To my knowledge, there are two different "digital" lens concepts. One is
that some lenses will only work with the reduced field of view on less than
full frame sensors on many digital cameras. The Canon digital rebel has a
1.6 FOV factor. But regular lenses work fine.

The other is the Olympus 4/3 system lenses. There is some real physics here,
but its unclear whether it's important. The idea here is that digital
sensors respond best to light impinging normal (that is, at right angles or
perpendicular) to their surface. Film doesn't care about the angle of
incidence. The 4/3 lenses claim to have a much closer to normal angle of
incidence on the sensor, and thus claim to give superior results. While it
is true about the angle of incidence, what is unclear is whether this effect
is significant with respect to the quality of the lens and coatings in other
respects.

> >I have an old Cannon Rebel 35mm that I never use. Am I right in assuming I
> >can use all my old lenses with the new digital rebel? Ive noticed digital
[quoted text clipped - 11 lines]
> lenses.
> Good luck

Reply to this Message