Lens extenders
Apr 23, 2012 00:35:48 #
Apr 23, 2012 02:13:52 #
professorwheeze wrote:
My extender is now a paper-weight!
One of my old 35mm film cameras is now a doorstop.
Apr 23, 2012 02:46:08 #
mine works fine in auto focus and auto exposure.do your homework,you have a 50/50 chance of finding one that works.have one that works on my sony a200 and a 550. another that works on my pentax 645 d.am i lucky or what?
soo i loose an f stop or 2,i can up the iso to 800,since i'm not shooting for nat/geo i still come out good.
soo i loose an f stop or 2,i can up the iso to 800,since i'm not shooting for nat/geo i still come out good.
Apr 23, 2012 05:34:27 #
I use a Canon 7D, EF100 - 400, + a 2x extender. I go to manual, set up a tripod and sit in a blind. When the Kingfishers and Blue Herons arrive it's a great photographer's bushwack! You loose an f stop, but you can compensate. I also use an RC-1 remote to prevent camera shake. Target your perch, frame, sharpen your manual focus. So far with elusive Kingfishers this has produced my best results.
Apr 23, 2012 06:16:33 #
Xantoz
Loc: Delaware
I have the Canon 100-400 and used the promaster 2x extender with it. Autofocus did not work so I learned to handhold and manually focus to shoot birds on my 50d. I upgraded to the canon 2x III ext. And my 5dm2 with a huge difference. It will autofocus nicely. I will post a photo later. Go for the canon if you can. It's worth the extra scratch. I love what it does with the other lenses and with the 5d combo it astounding.
Apr 23, 2012 06:31:19 #
nat wrote:
Hi Big Bear - I expect to lose AF, but I think it will be helpful for shooting egrets and other birds which always seem to be just beyond 400mm. I always use a tripod and I think I will be okay using manual focus. Thanks for your input.
BigBear wrote:
Hey Nat, I will tell you that using an extender on a 100-400 you will also lose AF.
Hi Big Bear - I expect to lose AF, but I think it will be helpful for shooting egrets and other birds which always seem to be just beyond 400mm. I always use a tripod and I think I will be okay using manual focus. Thanks for your input.
If you are too far away to shoot egrets with a 100-400 then you need to find another place to shoot. That lense is the mainstay of most of the Canon shooters that I hang with for birds here in Florida. All the attached were taken with that lens on a 5D.
Egret chicks
Wood stork on final
Great egret
Apr 23, 2012 06:49:08 #
whiplash3333
Loc: Cass City Michigan
nat wrote:
I shoot a lot of birds, some of which are out of range of my Canon 100-400 L lens. I'm thinking about getting a 1.4x extender. Does anyone have an opinion/experience with extenders? I understand that you lose an Fstop.
I called Canon before about That same problem. Those extenders will not focus higher then f/5.6 which wouldn't be a problem anyhow because you will be on a Tri-Pod anyhow. I'm going to purchase a 1/4 too.
Apr 23, 2012 06:51:28 #
Apr 23, 2012 07:18:21 #
melismus
Loc: Chesapeake Bay Country
Try this: buy an extender from a store that will allow you to return it.Shoot a lot of pix with and without it. To compare, crop the withouts to match the withs and see which wins.
Blessings,
Paul
Blessings,
Paul
Apr 23, 2012 07:44:40 #
I have the 100-400L and the 1.4x converter. You do lose the autofocus and it's not easy to get a sharp manual focus.
My 350D has the CMOS-C sensor so as well as the 1.4x I think I also have the 1.6x crop factor. This magnification on a lens this this size when it's fully extended makes it hard to keep steady and manually focus even on a tripod.
My 350D has the CMOS-C sensor so as well as the 1.4x I think I also have the 1.6x crop factor. This magnification on a lens this this size when it's fully extended makes it hard to keep steady and manually focus even on a tripod.
Apr 23, 2012 07:48:09 #
whiplash3333
Loc: Cass City Michigan
whiplash3333 wrote:
That III will auto-focus over 5.6.
It will not auto focus. Sorry
Apr 23, 2012 07:49:44 #
whiplash3333
Loc: Cass City Michigan
whiplash3333 wrote:
It will not auto focus. Sorry
whiplash3333 wrote:
That III will auto-focus over 5.6.
It will not auto focus. Sorry
II sorry again
Apr 23, 2012 08:27:27 #
Michael Digital
Loc: Spring Hill, Florida
The Canon 100/400L works well with the Canon 1.4 extender , but very poor image quality with the 2x. I have taken hundreds of images with the 2X and never got an image worth printing.
Here's a shot with the 100/400L with 1.4X
Here's a shot with the 100/400L with 1.4X
Apr 23, 2012 08:46:00 #
I have a 7D and use a 70-200 f/2.8 "L" series with a 2X extender (all Canon products) and have gotten some great bird pix while on safari in Tanzania. That said, I lose 2 f/ stops so good light is a must. Image quality and auto focus are fine.
Apr 23, 2012 09:27:21 #
Michael Digital
Loc: Spring Hill, Florida
While the Canon 2X gets poor results with the 100/400L, it gives excellent results with the Canon 400L 5.6. If you have a camera with live view, 7D in this image, autofocus can be achieved with this combo in live view mode.
Image was taken with 7D and 400L 5.6 and Canon 2X.
Image was taken with 7D and 400L 5.6 and Canon 2X.
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