Converter for EOS 600D

Hi guys
I have the possibility of a Bower 2 x digital autofocus high definition II tele converter.
I have a Canon EOS600D and I am told that the vendor has used it on his EOS350D. Before I commit to this, can anyone confirm if this is compatible for my 600D?
Would appreciate your assistance.
Many thanks

Kev
Glider pilot and lover of his new 600D
kevfreeflight1@aol.com

I hadn't heard of it, but a quick google showed that it is normal EF fit, so will fit any EOS camera, but is not compatible with EF-S lenses, so it is your lenses you need to consider.

sandpiper wrote in post #15238017
I hadn't heard of it, but a quick google showed that it is normal EF fit, so will fit any EOS camera, but is not compatible with EF-S lenses, so it is your lenses you need to consider.

Thanks - the camera came with and Canon EFS 18-55 with a/f and stabilzer. I also have a Canon 75-300 with auto focus lens. Is that any assistance at all to you?

Also, what make of lens are compatible with a Canon body? Seems to be so many different makes these days and when I get new lens in the future, want to get the right ones.

I'm just getting back in to DSLR having used a Sony A100 for a couple of years and sold that when finances were crippling me. Nice to have such a camera now and looking forward to getting some aviation shots with her.

My best wishes and thanks

Kev

kevfreeflight1 wrote in post #15238007
Hi guys
I have the possibility of a Bower 2 x digital autofocus high definition II tele converter.
I have a Canon EOS600D and I am told that the vendor has used it on his EOS350D. Before I commit to this, can anyone confirm if this is compatible for my 600D?
Would appreciate your assistance.
Many thanks

Kev
Glider pilot and lover of his new 600D
evfreeflight1@aol.com

do a search here on teleconverters or extenders, they only work on certain lens and the cheap ones can degrade image quality and affect AF performance

kevfreeflight1 wrote in post #15238039
Thanks - the camera came with and Canon EFS 18-55 with a/f and stabilzer. I also have a Canon 75-300 with auto focus lens. Is that any assistance at all to you?

Also, what make of lens are compatible with a Canon body? Seems to be so many different makes these days and when I get new lens in the future, want to get the right ones.

Well, the 18-55 is an EF-S so not compatible, but teleconverters don't work well at short focal lengths anyway. The 75-300 is an EF mount, so should fit on the TC as it seems to accept all EF lenses, but you should look online for a full compatibility list just in case, or ask the seller.

Bear in mind that all TCs will degrade image quality slightly, a 2x converter more so than a 1.4x. They show least degradation on long primes, as that is what they are optimised for, and a little more on zooms. In addition, the 75-300 is known for being a pretty poor lens to start with (as you might expect from the price) putting a 2x converter on it will reduce performance noticeably (and a cheap one like the Bower may show a very significant reduction).

Also you have to allow for the 2 stop reduction in light transmission caused by a 2x TC, which will make your f/5.6 lens into one that is wide open at f/11, thus knocking AF out (your camera won't want to autofocus past f/5.6 - there are ways of fooling it into trying, but focus will likely be slow and very hit and miss) and manual focusing will be tricky as the viewfinder is likely to be quite dark at f/11. In addition, if you don't have a solid tripod, you are going to be needing high ISOs unless in bright sunlight, as f/11 would otherwise require too slow a shutter speed to handhold.

So, although it should fit, you may be disappointed in the results. Unfortunately, if you want long reach and quality, there isn't really a cheap way to get there. You get what you pay for and combining a cheap zoom with a cheap converter is likely to give appropriate results. I don't want to insult you or your gear, or hurt your feelings, but unfortunately that is the way it is.

As for makes of lenses, any of the independents (Sigma, Tokina, Tamron etc) should do a version to fit Canon, but also ones to fit other mounts, so it is important to check that you order one that fits the Canon EF (or EF-S) mount specifically.

Naturally, Nikon, Sony etc. lenses are made to fit Nikons or Sonys etc. and not other brands. You can get an adapter to make them work on a Canon, but may lose some functionality such as AF).

Unless it's a really good deal, as in not much more than free... i'd pass on it. Bower is a manufacturer of cheap optics, and most of their lenses( with the exception of the recent primes) are definitely candidates of "you get what you pay for". If possible, i would suggest saving a little more money, to buy a Kenko or Sigma 1.4x TC.

As sandpiper has stated, the 75-300 won't do so well with any TC on it, and won't AF even with a 1.4x TC.

Guys - just wanted to say thanks for all your comments and I will take your advice and leave it and not purchase the converter. Sounds as though it would be a bad deal and I would lose far more than I would gain. Therefore, bow to your expertise and leave it.
I extend my thanks to you all.
Yours - in the sky
Kev