All images © Bob Atkins

7.jpg

This website is hosted by:
Host Unlimited Domains on 1 Account

3.jpg

Welcome, Guest. Please login or register.

Login with username, password and session length
 
Web www.bobatkins.com
*
+  The Canon EOS and Photography Forums
|-+  Photography Forums
| |-+  The Canon EOS Forum
| | |-+  New lens for my 20D
« previous next »
Pages: [1]
Print
Author Topic: New lens for my 20D  (Read 6124 times)  bookmark this topic!
2_Rastas
Newbie
*
Posts: 11


New lens for my 20D
« on: September 25, 2008, 01:52:00 PM »

Hey folks, I have a 20D so that means that any lens I buy from Canon I will have to multiply the size by 1.6 right?
I have the Canon 85mm prime lens but that works out to 136mm. I would like something closer to 35mm. The closest I have found is the Canon 50mm but that would be more like 85mm on my camera.
Any suggestions?
Logged
Bob Atkins
Administrator
Hero Member
*****
Posts: 1185


Re: New lens for my 20D
« Reply #1 on: September 25, 2008, 03:47:36 PM »

I'd look at the Canon EF 24/2.8  if you want a prime. It's the equivalent of a 38mm lens on a full frame camera. It's the lens I use myself on a 40D when I want a "wide-normal" lens.

Obviously you can use a setting around 22mm on any zoom that covers that range such as the EF-S 18-55 the EF-S 17-85 IS, the EF 17-40/4L or (the best of all) the EF-S 17-55/2.8L

This article explains the whole "crop sensor/lens multiplier" issue - http://www.bobatkins.com/photography/tutorials/crop_sensor_cameras_and_lenses.html
« Last Edit: September 25, 2008, 03:52:27 PM by Bob Atkins » Logged
2_Rastas
Newbie
*
Posts: 11


Re: New lens for my 20D
« Reply #2 on: September 25, 2008, 04:54:22 PM »

I guess I was hoping to get a faster aperture than a f2.8. I guess such a lens doesn't exist?

Would I be better off with the Canon 10-22mm f/3.5-4.5?
I know it's not as fast but what do you think?

O well.
« Last Edit: September 25, 2008, 05:01:31 PM by 2_Rastas » Logged
marcfs
Full Member
***
Posts: 88


Re: New lens for my 20D
« Reply #3 on: September 25, 2008, 08:19:58 PM »

How are you planning to use the lens?  Indoors?  Landscapes?  People?

Your use will impact the reccomendation.

Marc
Logged
Bob Atkins
Administrator
Hero Member
*****
Posts: 1185


Re: New lens for my 20D
« Reply #4 on: September 25, 2008, 11:20:25 PM »

Oh yes, you can get a faster lens. That would be the Canon EF 24/1.4L if you have well over $1100 to spend on a lens.

There's also a decent Sigma 24/1.8 at a much lower price (under $400). It has full frame coverage and is "digitally optimized" whatever that's supposed to mean (probably better optimized anti-reflection coatings)
Logged
2_Rastas
Newbie
*
Posts: 11


Re: New lens for my 20D
« Reply #5 on: September 26, 2008, 02:56:24 PM »

Wow, that's one heck of a price difference!
Logged
Bob Atkins
Administrator
Hero Member
*****
Posts: 1185


Re: New lens for my 20D
« Reply #6 on: September 26, 2008, 03:09:49 PM »

Well, you get what you pay for. The Canon is a "L" series lens with a fast ring USM focusing system and it's 2/3 stop faster than the Sigma. "L" lenses have preium optics and professional grade construction.

The Sigma lens is good, but it's optically slower by 2/3 stop, has a slower. noisier focusing system and it's not quite as sturdily built, though it's no doubt sturdy enough for all normal use.
Logged
Pages: [1]    
Print
« previous next »
Jump to: