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Centre point only when using F8 AF
....When I rarely mount my Canon 1.4x on my 400mm F/5.6 L + 7D2, I get F/8 AF but the centre 5 pts. So are you saying that the 100-400mm only offers 1 AF pt?
Centre point only when using F8 AF
It's classified as a "Group G" setup so it should work the same, Robin, as long as you have AF point expansion enabled.....When I rarely mount my Canon 1.4x on my 400mm F/5.6 L + 7D2, I get F/8 AF but the centre 5 pts. So are you saying that the 100-400mm only offers 1 AF pt?
Showing my ignorance Bob, can you explain about the groups please.It's classified as a "Group G" setup so it should work the same, Robin, as long as you have AF point expansion enabled.
Bob
Canon allocate lenses and lens/converter combinations to "Groups" so that it can be quickly identified whether the setup will work on various bodies in various modes.Showing my ignorance Bob, can you explain about the groups please.
Thanks Bob, that makes sense nowCanon allocate lenses and lens/converter combinations to "Groups" so that it can be quickly identified whether the setup will work on various bodies in various modes.
Eg....a body's spec could well detail which groups will autofocus with all AF points as opposed other groups which are restricted to a smaller number of AF points.
Bob
Love these, where did you shoot them?
....When I rarely mount my Canon 1.4x on my 400mm F/5.6 L + 7D2, I get F/8 AF but the centre 5 pts. So are you saying that the 100-400mm only offers 1 AF pt?
It's classified as a "Group G" setup so it should work the same, Robin, as long as you have AF point expansion enabled.
Bob
I'm not sure the results will be equal between the different flavoured converters Robin.!
Robin 400 on a cropper yields you more reach than my 600 on my ff, I know it's nice to fill the frame with a bird on a stick or whatever takes your fancy, but how about thinking more about the image and consider making it more scenic.. That's what I have been concentrating on since going ff, and now I don't crop at all. Just a thought, maybe it could help.?
You have the equivalent of 896mm on the end of your 7D2! With no IS! Sounds like a lot of pain to me? Do you use a monopod at all!?....I agree and I actually prefer to create images which at least show a bird in its environment although I'm not anti pristine 'bird-on-stick' images. I like to do a bit of both but usually with wildlife they don't do what you would like them to do and so you just capture what you can at the time.
My images on Flickr show my typical final images: https://www.flickr.com/photos/114775606@N07/
You have the equivalent of 896mm on the end of your 7D2! With no IS! Sounds like a lot of pain to me? Do you use a monopod at all!?
Regards Steve
Like your Egret shot..
As you know redrobin i have just took delivery of the 100-400 usmII Just put on my kenko 1.4x pro 300 on my 7d2 and unfortunately the camera does not like it and throws up an error (n)
Does anyone know if any other 3rd party converters will work ??
it comes up with....." Stop being a tight arse and buy the proper canon extender"![]()
err 01 communication between the camera and lens faulty. clean the lens contacts
....So Miss Canon is calling Miss Kenko a dirty slut!
For what it's worth, when I use the Kenko 1.4x on my Canon 400mm F/5.6 L prime they hold hands willingly (must be lesbians?) and Miss Canon Seven Heaven 7D2 even goes as far as allowing enough contacts to touch so that all the AF pt options are available.
I suspect that it might have something to do with the 100-400mm being a zoom lens in which the widest aperture very happily slides as the focal length increases. [Note that I resisted adding sexual innuendo on this last sentence]
The convertor works on my 7d2 with my other lenses so i would think its the 100-400 usmII
Extender will work fine, Robin.
As you know redrobin i have just took delivery of the 100-400 usmII Just put on my kenko 1.4x pro 300 on my 7d2 and unfortunately the camera does not like it and throws up an error (n)
Does anyone know if any other 3rd party converters will work ??
Finally caved and got one ordered after my 7d struggled in some woods shooting firecrest. Hope it's here for the weekend. Any bird photographers with mk ii 's what focus option are you using?
Got my new one this week, I sent the first one back for a refund early in January, it was useless on AF. I was worried in case it was me not using the camera correctly, and on one shoot out of 368 shots, 3 were acceptably in focus, a desperately dismal rate. I did try a controlled series of shots and that confirmed that the camera was giving very inconsistent results.Glad you are pleased, Peat, mine's being replaced next week as I'm just not satisfied with it's af performance, especially in low light and it seems that some of the early bodies (I got mine the first day) suffer some problems with af.
Next time I'm going to wait for a few months for a newly released body, although that wasn't possible in this case.
Looking forward to the change!!
What cf cards are people using with their 7d mkii's? I am a bit out of the loop as my 16gb cf card has done me fine since I got a 7d on launch, now it seems its a bit out of date.