Telephotos on a 5D - DPChallenge Forums

Nikon AF Nikkor 50mm f/1.8D

08/26/2006 10:22:56 PM · #1

I am looking at a Tamron SP AF200-500MM F/5-6.3 (cheap teles)

Are there any issues with vignetting on a FF (Canon 5D)?

I have heard the BigMa is not good on a 5D for that very reason.

Message edited by author 2006-08-26 22:23:30.

wavelength

Nikon D300

08/26/2006 10:28:54 PM · #2

Originally posted by papagei:

I am looking at a Tamron SP AF200-500MM F/5-6.3 (cheap teles)

Are there any issues with vignetting on a FF (Canon 5D)?

I have heard the BigMa is not good on a 5D for that very reason.

hmm, haven't heard that. It's a FF lens anyways, it shouldn't have problems.

This Review says a big NO to vignetting on the Tamron.

wavelength

Nikon D300

Nikon AF Nikkor 50mm f/1.8D

08/26/2006 10:30:22 PM · #3

Wait, that test was on a 10d. pfffft. Continuing to google meself.

08/26/2006 10:56:09 PM · #4

Thanks for searching. Considering that I will be using a 2x converter, it is best to stay with L lenses - but to find something affordable (or better put, something which will will fit my credit card LOL)

Now looking at the Canon EF 100-400mm f/4.5-5.6L IS USM
:0

Mick

Canon EOS-5D

08/26/2006 10:58:15 PM · #5

I've heard that FF cameras like the 5D are very sensitive to lens quality. I haven't noticed any problems with my 5D, but most of my glass consists of Canon 'L' lenses.

I suggest going to a camera store and trying on the lens. Snap a few shots with it, then go home and have a look. Vignetting should be easy to spot.

bvoi

Canon EOS-350D Rebel XT

08/26/2006 10:58:45 PM · #6

Sometimes the auto focus doesn't work well tele converters. Then again, I have a quantary, which is probably the cheepest stuff ever.

08/26/2006 11:00:08 PM · #7

You know that, with a 2x converter, you will lose auto-focus capability on any lens that isn't 2.8 or faster, right?

I use the 2x with my Canon 70-200 2.8L IS lens. I've also used it on a rented Canon 300 2.8L and it has worked well on both of those. But the L lenses that are f/4 or slower aren't going to work... it's the aperture that matters, not the L designation.

08/26/2006 11:01:15 PM · #8

To complete the idea here... you could use a 1.4x teleconverter on an f/4 lens and it would still be able to focus.

08/26/2006 11:19:38 PM · #9

Well, I went ahead and did it! Ordered the EF 100-400mm f/4.5-5.6L IS USM and also a Speedlite 580EX.

Hoping to get it all before I leave for Hawaii on Sep 5.

Yes, I am bad, very, very, very, very bad :)

I Enjoy Ham

Canon EOS-30D

Canon RF 100-500mm f/4.5-7.1 L IS USM

08/26/2006 11:30:54 PM · #10

i was researching the 100-400 a while back and im sure youll be happy with it. They have some issues with focus on some of the models but if you get a bad one you can just send it back for a brand new one :)

-Dan

cloudsme

Canon EOS R5

08/26/2006 11:38:32 PM · #11

I read somewhere that if you tape up certain contacts on the 1.4X teleconverter, it will autofocus on slower lenses.

MadMan2k

Sony Alpha a6400

Tamron 70-180mm F/2.8 Di III VXD

08/26/2006 11:41:47 PM · #12

Originally posted by cloudsme:

I read somewhere that if you tape up certain contacts on the 1.4X teleconverter, it will autofocus on slower lenses.

That's a cool idea. There might be a firmware hack also, since the 1-series are able to autofocus with any effective maximum aperture... They do have a lot better AF systems and it would probably work much better though.

08/27/2006 12:36:48 AM · #13

I just bought the 1.4x at Adorama as it says this:

This tele extender can be used with fixed focal length lenses 135mm and longer (except the 135mm f/2.8 Softfocus lens), and the EF 70-200 f/2.8L, 70-200 f/2.8L IS, 70-200 f/4.0L, and 100-400 f/4.5-5.6L IS zoom lenses.
description

08/27/2006 12:41:10 AM · #14

Originally posted by papagei:

This tele extender can be used with fixed focal length lenses 135mm and longer (except the 135mm f/2.8 Softfocus lens), and the EF 70-200 f/2.8L, 70-200 f/2.8L IS, 70-200 f/4.0L, and 100-400 f/4.5-5.6L IS zoom lenses. description

Yes, and the description you quoted goes on to say say this about using the 1.4x extender with the 100-400 lens: However, you lose autofocus with all EOS cameras except those with a 45-point AF system, such as EOS-3, EOS-1v, EOS-1D, EOS-1Ds and EOS-1D Mark II.

(not trying to rain on your parade, just want you to go into this with your eyes open)

Message edited by author 2006-08-27 00:42:02.

Sigma 28-70mm f/2.8 EX DG for Pentax

08/27/2006 07:10:41 AM · #15

I was just about to start a thread along these lines.

I have just bought a 2x teleconverter and used it for the first time yesterday photographing a field hockey game. Only a hand full of my images were in focus, is this because I need to manually focus. I was using my 70-200 2.8L IS lens. I had it on aperature priority and was able to get f/2.8 which I thought wasn't possible.

Leok

Pentax K10D

08/27/2006 07:21:17 AM · #16

There are two 500mm Bigmas, from what I have read the 170-500 is nothing special, the 50-500 is great. Don't remember any comments of vignetting on FF cameras.

Then again the OP bought something else anyway

Judi

Canon EOS-5D Mark III

Canon EF 17-40mm f/4.0L USM

08/27/2006 08:10:27 AM · #17

Here are two images from the Sigma 50-500 on the 5D. They are straight from the camera except resize.

There is some vignetting but I actually like it. It is only noticeable at 500mm.

08/27/2006 08:17:22 AM · #18

Originally posted by Hifi:

I have just bought a 2x teleconverter and used it for the first time yesterday photographing a field hockey game. Only a hand full of my images were in focus, is this because I need to manually focus. I was using my 70-200 2.8L IS lens.

No. But you do want to put your camera on AI focus. Then, when you see the action happening, keep your finger on the shutter button half way down so that the camera is constantly keeping the action in focus.

If you use the single shot focus mode, then chances are, by the time you've locked the focus, the action has moved. And when you're playing with shallow DOF, that means they will likely be blurry.

Originally posted by Hifi:

I had it on aperature priority and was able to get f/2.8 which I thought wasn't possible.

Uh, no, that should NOT be possible. With your 2x mounted on the 70-200 2.8 lens, it should only show 5.6 as the maximum aperture. Is this the Canon 2x you're using, or some other brand?

08/27/2006 08:21:58 AM · #19

It's the Kenko version. As soon as it was showing f2.8 I knew something was not right but didn't know how to fix it.

I had the camera in A1 focs but I think I was trying to focus and shoot all at the same time. I will keep the shutter button half way down next time and see how I go. Thanks

08/27/2006 08:25:34 AM · #20

I have a 2x attached to my 70-200 2.8L and that is my standard setup (I never remove it) and I get great shots with full AF - but then it's the Canon converter.

Originally posted by Hifi:

Message edited by author 2006-08-27 08:26:18.

08/27/2006 08:31:51 AM · #21

I'm kicking myself that I didn't get the Canon version.

08/27/2006 08:43:14 AM · #22

Can anybody explain to me how I could shoot with an aperatre of f2.8. Do I need to change something in the menu to let the camera know I'm using a teleconverter as I just thought it was not possible to have use this aperature

doctornick

Apple iPhone 13 Pro

08/27/2006 08:48:43 AM · #23

Originally posted by Hifi:

Are your photos coming out ok? Is the exposure right? If your photos are ok, then I would not worry about what number the camera is reporting. What's probably happening is the Camera is not detecting the Teleconverter, as far as the Camera knows you are shooting wide open and it thinks it's at f/2.8 even though the actual Aperture is f/5.6. Makes sense?