Question re f stop on 600 mm f/4 is mk2 lens with teleextenders
Nov 27, 2017 18:40:42 #
Will the canon 600mm f/4 l mk 2 be limited to f8 with the 1.4 and 2.0 xtenders on a ff camera?
Nov 27, 2017 18:45:49 #
Typically, a 1.4X TC is 1 stop and 2.0X is 2 stops so I would think that you would get f5.6with the 1.4X and f8 with the 2.0X.
Nov 27, 2017 18:47:43 #
rwilson1942 wrote:
Typically, a 1.4X TC is 1 stop and 2.0X is 2 stops so I would think that you would get f5.6with the 1.4X and f8 with the 2.0X.
I can only go to f8 with the 1.4 on my 100-400 at 400.
Nov 27, 2017 19:26:22 #
cmc65 wrote:
Will the canon 600mm f/4 l mk 2 be limited to f8 with the 1.4 and 2.0 xtenders on a ff camera?
Yes, the 600 is supposed to AF with a 2X on f8 enabled bodies ....using CANON 2X III especially.
Nov 27, 2017 19:53:07 #
imagemeister wrote:
Yes, the 600 is supposed to AF with a 2X on f8 enabled bodies ....using CANON 2X III especially.
I'm not concerned with af capabilities. I am questioning how wide I can shoot with the extender on an f4 lens.
Nov 27, 2017 20:22:36 #
cmc65 wrote:
I can only go to f8 with the 1.4 on my 100-400 at 400.
Because it’s f5.6 at 400mm without the extender - f8 with a 1.4x
Nov 27, 2017 20:27:03 #
Steve DeMott
Loc: St. Louis, Missouri (Oakville area)
cmc65 wrote:
I'm not concerned with af capabilities. I am questioning how wide I can shoot with the extender on an f4 lens.
Try this calculator
https://www.scantips.com/lights/fieldofview.html#top
Nov 27, 2017 20:35:41 #
cmc65 wrote:
I'm not concerned with af capabilities. I am questioning how wide I can shoot with the extender on an f4 lens.
W/1.4x=f5.6 , W/2x=f8 ....??
Nov 28, 2017 11:20:08 #
cmc65 wrote:
Will the canon 600mm f/4 l mk 2 be limited to f8 with the 1.4 and 2.0 xtenders on a ff camera?
With the 1.4x it will be f/5.6
with the 2x it will be f/8
Nov 28, 2017 17:13:00 #
Thank you folks for helping me sort this I think in the back of my mind I know this to be true but for some reason I kept wanting to believe that I would be able to shoot faster than 5.6 and 8 with an f4 lens. My husband is retiring in December and told me today that he wants me to buy the camera, long lens and tripod that I want after the first of the year. The camera will b the 1dx mk2. It's the lens that I was hung up on. Need much more reach than the 100-400 mk2 that I have. First choice is the 6O0f/4. But as a bit of cost saving I wondered seriously about the 500 with the extenders. But, and it's a big but, I am always looking for more light with the 7d mk2 and 5ds r that I have now. In love with the speed of the 7d but seriously like what I get with the full frame. Now there are those rumors that canon will be bringing new long lenses to the table next year so now I see new considerations arising to confuse the issue. Oh dear.
Nov 28, 2017 17:56:04 #
cmc65 wrote:
Thank you folks for helping me sort this I think i... (show quote)
The 400 DO II is a much more manageable lens than the 600 or 500 f4's . With the 1.4X becomes 560 5.6 and with 2X becomes 800 f8. With the 5Dsr you can crop - not so much with the 1Dx....but higher ISO's with the 1DX. Send a PM to Nalu here on the Hog - he has all the stuff you are thinking about.....
Nov 28, 2017 18:15:11 #
imagemeister wrote:
The 400 DO II is a much more manageable lens than the 600 or 500 f4's . With the 1.4X becomes 560 5.6 and with 2X becomes 800 f8. With the 5Dsr you can crop - not so much with the 1Dx....but higher ISO's with the 1DX. Send a PM to Nalu here on the Hog - he has all the stuff you are thinking about.....
Thank you for the feedback. Always appreciated. In fact this morning I spent some time going over Nalus earlier posts. Right now I have eliminated the 400 because it's too close to the lens I am using. I want to be able to shoot without the extenders because of the light problem that keeps my shutter speeds to low , or lower than I want to use. So that leaves me needing a camera that can handle higher ISO. That would not be the 5ds r. It is also slow with only 5fps. I'm thinking I will rent the 600 to see if I can handle it physically. That would be the most reasonable way to find out for sure. Thanks again.
Nov 28, 2017 18:53:14 #
cmc65 wrote:
Thank you for the feedback. Always appreciated. In... (show quote)
IMO, physical lens management ( and support) is a big consideration depending on exactly what your pursuits are. Renting is a GOOD idea !
Nov 28, 2017 19:07:32 #
imagemeister wrote:
IMO, physical lens management ( and support) is a big consideration depending on exactly what your pursuits are. Renting is a GOOD idea !
Right now I use a heavy duty feisol tripod with a Nest gimbal, with either the 5d or 7d ( both with a battery grip) and the 100-400. I can carry it on my shoulder for a couple of miles without too much problem but wouldn't try to hike vertically that way. I'm 5ft 3" and 130 lbs give or take and will b 70 on my next birthday. But you never know what's coming.
Nov 28, 2017 19:27:29 #
cmc65 wrote:
Will the canon 600mm f/4 l mk 2 be limited to f8 with the 1.4 and 2.0 xtenders on a ff camera?
Basically-yes. However, certain Canon bodies will allow AF at an aperture above 5.6/8 when using live-view and center-point focus. Included in the list of bodies are the 1-Dx and the 5-DMkIV. Why are you concerned about using f/5.6 for 840mm? Canon's EF800 is an f/5.6 lens. The anticipated EF1000? Canon took almost 16 years to build the much anticipated version II for the 100-400mm. And, when it happens, it won't be cheap. The EF 600 is the most coveted big white on the market, but it weighs its weight. Both the 1-DxMkII and the EF600 are very heavy, much more so than any other body or lens you have mentioned, the camera is almost 3.5 lbs itself.
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.