I am looking for a Canon mkii 2x conv. I would like the glass to be perfect please. If anyone can help, please get in touch. Also can I stack two 2x converters on a 1 series body and still get auto fous??
It depends what lens you are using them with but you are going to be restricted to central AF point only in any event and the loss of light will only make a bad situation even worse (from both an AF and viewfinder brightness point of view).
I would say you will find AF pretty much useless to be honest (lets face it, two 2x convertors on a f/2.8 lens is going to be f/11 at it's widest
It will be on 600/4. Will I be restricted to central auto focus point only, when using using one 2x conv. If I used two 2xconv manual focus would be OK as I need this for a shoot but the subject is going to be distant but fairly static.
I have stacked a 2x and a 1.4x on a 500F4 and for some reason it only sees the 2x and shows F8 so the AF works on a 1 series i dont know how it would work with 2-2x. I cant imagine getting a really good image from it you need to stop down to F22 or something stupid-maybe if you lived on the sun you would get good enough light
This was with the 1D11 and is full frame, not the sharpest picture ever but useable. Centre spot autofocus worked but searched a lot and was a bit sticky. I would say just about impossible for anything fast moving. Focussing was best when I did most of it manually and just let it do the last bit. The whole setup was best when I put it on the tripod with mirror up and on a timer
Distance was difficult to estimate as there was nothing between me and the bird (just a quarry) but I would guess at 30-35m max would be 40m. I was shooting at f9 ISO500 1/200th. However the nest is on North facing cliff and in the shade, so with better light and a faster shutter speed, I think that the image could be improved a lot.
Just bear in mind the using a TC makes the lens hunt more with auto-focus sticking two on would make it work even more putting more pressure on your motor-drive! I have two very nice door stops in the office due to this! (Both models are over seven years old and no longer are any spare parts available!).
Let me explain the situation, It has been announced that Peregrines are nesting for the first time in Suffolk for 200 years! Now as I normally go to London or the Peak District to see these magnificent birds I'm very very happy that they are breeding here finally. (they have 3 chicks at the moment). I estimate the closest I can get to the nest will be around 150m! So that is why I would want as much magnification as possible, b ut also realise all my shots will need a big crop, this will also be on board a boat so I hope it is a calm day. I am just looking to get some half decent record shots of their first season, a couple of other guys have some ok images that are heavily cropped from a very long way off, so hopefully I can get something even better. If anyone has any other other ideas (digiscoping or HD cam) then please let me know!!
In days of old before the concept of IS, ultra long telephoto photography used to require a second stabilising "triangulating" arm from tripod leg to camera base - I think Manfrotto may still sell something along those lines. If you are shooting a nest from static place then this would help remove some of the shakes
I have just measured it on google earth and it was about 40-50 m
The following shot was 600mm non is hand held just leaning on the hide window using 2 2x converters and was 120-130m away
http://www.pbase.com/bmcgeough/image/92280399
Discussion
14 repliesI am looking for a Canon mkii 2x conv. I would like the glass to be perfect please. If anyone can help, please get in touch. Also can I stack two 2x converters on a 1 series body and still get auto fous??
Regards
Rob
It depends what lens you are using them with but you are going to be restricted to central AF point only in any event and the loss of light will only make a bad situation even worse (from both an AF and viewfinder brightness point of view).
I would say you will find AF pretty much useless to be honest (lets face it, two 2x convertors on a f/2.8 lens is going to be f/11 at it's widest
Barrie
It will be on 600/4. Will I be restricted to central auto focus point only, when using using one 2x conv. If I used two 2xconv manual focus would be OK as I need this for a shoot but the subject is going to be distant but fairly static.
Regards
Rob
Using 2 it's going to be an effective f/16 so AF is definitely out and you'll probably have trouble seeing anything to manually focus to be honest
Barrie
Thanks for the advice. Will stick with one and hopefully get the shots I want.
Regards
Rob
Dave
Was trying out the 500 + 2x and 1.4x on a 1DS11 and 1D11 yesterday at Berry Head
http://www.virtually-unlimited.co.uk/npn/uknp/fulmar.jpg
This was with the 1D11 and is full frame, not the sharpest picture ever but useable. Centre spot autofocus worked but searched a lot and was a bit sticky. I would say just about impossible for anything fast moving. Focussing was best when I did most of it manually and just let it do the last bit. The whole setup was best when I put it on the tripod with mirror up and on a timer
Regards
John Lee
Roughly, in metres how far were you from the subject? and what f stop were you using??
Regards
Rob
Distance was difficult to estimate as there was nothing between me and the bird (just a quarry) but I would guess at 30-35m max would be 40m. I was shooting at f9 ISO500 1/200th. However the nest is on North facing cliff and in the shade, so with better light and a faster shutter speed, I think that the image could be improved a lot.
Regards
John Lee
Just bear in mind the using a TC makes the lens hunt more with auto-focus sticking two on would make it work even more putting more pressure on your motor-drive! I have two very nice door stops in the office due to this! (Both models are over seven years old and no longer are any spare parts available!).
Let me explain the situation, It has been announced that Peregrines are nesting for the first time in Suffolk for 200 years! Now as I normally go to London or the Peak District to see these magnificent birds I'm very very happy that they are breeding here finally. (they have 3 chicks at the moment). I estimate the closest I can get to the nest will be around 150m! So that is why I would want as much magnification as possible, b ut also realise all my shots will need a big crop, this will also be on board a boat so I hope it is a calm day. I am just looking to get some half decent record shots of their first season, a couple of other guys have some ok images that are heavily cropped from a very long way off, so hopefully I can get something even better. If anyone has any other other ideas (digiscoping or HD cam) then please let me know!!
Regards
Rob
http://www.pbase.com/bmcgeough/image/79964260/original
600mm with 2 2xtele
http://www.pbase.com/bmcgeough/image/79958064
Just to give you an idea
Thanks for the links and very nice shots. Can you remember distance to subject?
Regards
Rob
Mike
I have just measured it on google earth and it was about 40-50 m
The following shot was 600mm non is hand held just leaning on the hide window using 2 2x converters and was 120-130m away
http://www.pbase.com/bmcgeough/image/92280399