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View Full Version : what's exactly the 1.6 multiplying factor and how it affects


pnp
30th of August 2004 (Mon), 01:24
I've been reading about the Canon Digital Rebel, but I didn't make clear this:

what about the 1.6 multiplying factor of the digital rebel?

If I put my Canon 24-80mm (conventional 35mm) lens in the dRebel?...
Can i take 24mm pictures?... (always talking in measures in 35mm)...

Thanks in advance!!..

robertwgross
30th of August 2004 (Mon), 01:52
You will probably want to do a search on this topic (see the top of the page). It has been discussed many times before.

---Bob Gross---

RichardtheSane
30th of August 2004 (Mon), 01:55
If you put your 24-80 lens on the rebel then the lens will behave like a 38-128 lens.

If you want to shoot 24 mm you will need to buy a 15mm lens

There is a lot of information and explanations on the crop factor (That is a better term that multiplication factor IMHO) in this forum, you could probably find it by searching if you want it.

CyberDyneSystems
30th of August 2004 (Mon), 07:57
Bob actually has a great Politically correct term..

"Lens Factor" 8) :wink: :lol:

robertwgross
30th of August 2004 (Mon), 11:10
Geez, are we back into that again?

One group wants to argue that it is a magnification factor. Another group wants to argue that it is a crop factor. Another group wants to argue something else.

Rather than open up those religious wars again, I just call it the 1.6 factor and move on. Let each group assign whatever meaning it wants to that.

---Bob Gross---

CyberDyneSystems
30th of August 2004 (Mon), 11:30
My mistake.. "1.6 factor"


We could call it the "X-Factor" for the more generic :)

RDKirk
30th of August 2004 (Mon), 16:26
I've been reading about the Canon Digital Rebel, but I didn't make clear this:

what about the 1.6 multiplying factor of the digital rebel?

If I put my Canon 24-80mm (conventional 35mm) lens in the dRebel?...
Can i take 24mm pictures?... (always talking in measures in 35mm)...

Thanks in advance!!..


If you aren't also using a 35mm camera, there is no reason for you to care. The "normal" lens for the DRebel is 28mm. A 24mm is a slight wide angle. A 14mm lens is significant wide angle for it. An 80mm is nearly three times the length of normal.

Rayz
31st of August 2004 (Tue), 00:32
Look! Guys! It's quite simple. No religion involved. If you are considering full frame 35mm from a 300D perspective, 35mm represents a 1.6x multiplier effect. If you're considering a 300D from the 35mm perspective, the 300D's got a 1.6 crop factor :D .

Jesper
31st of August 2004 (Tue), 01:13
Here is a good explanation:
Understanding the DSLR Magnification Factor (http://www.luminous-landscape.com/tutorials/understanding-series/dslr-mag.shtml)