The 300 has the benefit of being able to achieve f2.8.
The 600 has the benefit that you can use to fend-off an attacking Moose.
;-)
--
Lee Jay
(see profile for equipment)
-
Welcome to the new forums! Please read this first. For known issues we are working to resolve, click here.
300/2.8+2x vs. 400/4 DO+1.4x vs 600/4
- Thread starter Richt2000
- Start date
The 600 has the benefit that you can use to fend-off an attacking Moose.
;-)
--
Lee Jay
(see profile for equipment)
Slow. However, you can get around that limitation by using stacked 1.4s instead. A Canon and Kenko Pro stack as do two Kenko Pros. The only downsides I've seen are slightly softer edges and inaccurate EXIF data.
--
Lee Jay
(see profile for equipment)
I have not stacked tcs on my 300mm so I have a question for you. I have both Canon 1.4 and 2x tcs. What other 1.4x tc would be the best to buy to stack with my current tcs when using a 20D? Thanks for the help!!
--
Rachel
CATS member #51 > ^..^
Hummingbird Hunter #6
--
Rachel
CATS member #51 > ^..^
Hummingbird Hunter #6
For me, the 300mm 2.8 IS was the way to go. The 500 and 600mm is just too big, heavy and expensive. I would love a 600mm but to be honest with myself I doubt I would ever use it because of the size. I don't see myself spending that kind of money on a lens that I would dread carrying around
The 300mm gave me a great sports lens and when I add the tc I can get to 600mm. The 300 is a very flexible that provides great quality!
--
Rachel
CATS member #51 > ^..^
Hummingbird Hunter #6
bobbyz
Veteran Member
When I did play with it. I was using 30D. I think using 1.4xTC with 500/600mm, AF would be much better.
--
Bobby
http://bobbyz.smugmug.com
--
Bobby
http://bobbyz.smugmug.com
Do two 1.4x stacked really make a difference to AF speed ?
You would think it would be slower due to more circuitry.
I hadn't thought about the AF speed issue....
Click profile for current and previous equipment.
Website: http://www.fotoz.co.uk
You would think it would be slower due to more circuitry.
I hadn't thought about the AF speed issue....
--
Click profile for current and previous equipment.
Website: http://www.fotoz.co.uk
excal
Veteran Member
If ultimate reach is the goal, the tighter the photosites, the better. For this, the 400D is the best option there is, with 20D/30D a close 2nd (but with the 5fps advantage).
Also, when using extenders, the corners going soft isn't such a big deal, as it's a cropper. The 300/2.8 has the highest MTF in the middle, and also the shortest MFD, of all of the super-tele's. That's partly why I got it.
Excal
Excal
Also, when using extenders, the corners going soft isn't such a big deal, as it's a cropper. The 300/2.8 has the highest MTF in the middle, and also the shortest MFD, of all of the super-tele's. That's partly why I got it.
Excal
--
Excal
A single Canon 2x is designed to slow down the autofocus by quite a bit. It seems that 3rd-party TCs don't do this. However, they do report to the lens and the lens slows itself down, just not quite as much.
With stacked 1.4s, first, you don't have the Canon 2x to slow things down. Second, only one of the TCs reports to the lens so it slows itself down much, much less or not at all.
The downside is a little more hunting.
--
Lee Jay
(see profile for equipment)
bobbyz
Veteran Member
Bill Gilbertson
Leading Member
I am getting dangerously close to buying this lens. I currently have a 200 1.8 that I use with a 2x teleconverter (usually with a monopod). Will the 400 f4 give better results than the 200 1.8 with 2x?
I want to shoot waterfowl handheld from a kayak. I like its weight, fast focusing and weather sealing. I don't dare bring my 200 1.8 in the kayak as it is not weather sealed. I've tried a 500 f4 at the Canon booth at NAPP Conference and my arm just quivers from the weight. 400 DO appears to be the only Canon expensive lens that does not hold its value.
Any thoughts? Should I take the plunge?
--
BillG
I want to shoot waterfowl handheld from a kayak. I like its weight, fast focusing and weather sealing. I don't dare bring my 200 1.8 in the kayak as it is not weather sealed. I've tried a 500 f4 at the Canon booth at NAPP Conference and my arm just quivers from the weight. 400 DO appears to be the only Canon expensive lens that does not hold its value.
Any thoughts? Should I take the plunge?
--
BillG
The 300/2.8 only weighs a little over a pound more and gives you just a touch more focal length at f4 (420/4). It holds its value better and is optically about as good as they get.
--
Lee Jay
(see profile for equipment)
Shane Pope
Veteran Member
http://www.photozone.de/8Reviews/lenses/canon_300_28is/index.htm
This has the test with 2X
Cheers
SHANE
This has the test with 2X
Cheers
SHANE
JJMacks
Veteran Member
- Messages
- 10,595
- Solutions
- 4
- Reaction score
- 196
Size
While I have a backpack that the 500mm F4 I don't use that pack because of its size. The 400mm F4 DO smaller and lighter had a hefty price $1700 more then the 300mm F2.8 that $1700 bought me a full gimbal head, a 1.4TC and a case of wine. Yes I want something longer that is lighter and cheaper then the 600mm F4 IS. Maybe Canon will come out with a 600mm F5.6 IS before I come up with the money for the 500mm F4. I'm very happy with the 300mm F2.8 IS and feel it is more versatile then the 400mm F4 DO IS but it is bigger and heaver then the DO.
--
JJMack
While I have a backpack that the 500mm F4 I don't use that pack because of its size. The 400mm F4 DO smaller and lighter had a hefty price $1700 more then the 300mm F2.8 that $1700 bought me a full gimbal head, a 1.4TC and a case of wine. Yes I want something longer that is lighter and cheaper then the 600mm F4 IS. Maybe Canon will come out with a 600mm F5.6 IS before I come up with the money for the 500mm F4. I'm very happy with the 300mm F2.8 IS and feel it is more versatile then the 400mm F4 DO IS but it is bigger and heaver then the DO.
--
JJMack
Hi Lee Jay,
That is really really useful. I didn't know that, as I have only used the canon 1.4x extender.
Do you know if the 2x Kenko Pro 300 slows the system down as much as the canon 2x ? I.e. is the whole 2x thing, or Canon 2x circuitry ?
Thanks again
Rich
Click profile for current and previous equipment.
Website: http://www.fotoz.co.uk
That is really really useful. I didn't know that, as I have only used the canon 1.4x extender.
Do you know if the 2x Kenko Pro 300 slows the system down as much as the canon 2x ? I.e. is the whole 2x thing, or Canon 2x circuitry ?
Thanks again
Rich
--
Click profile for current and previous equipment.
Website: http://www.fotoz.co.uk
Its for this reason Lee Jay, I have now disregarded the 400/DO.
Also the fact that you cannot use it at 300 !
A 300/2.8 is now on my shopping list.
Also the fact that you cannot use it at 300 !
A 300/2.8 is now on my shopping list.
It seems the Canon does it more but I sure wouldn't swear to it.
--
Lee Jay
(see profile for equipment)
Personally I would go for the 600 f/4 and not even bother with the 300 or 400 and TC’s. However, since weight and size are issues for you I would pick the 300 over the 400. Other relatively light weight options that I have really enjoyed using are the old EF 500mm f/4.5L and the Sigma 500mm f/4.5 EX w/1.4x TC. If you have a 1-series body the Canon lens will work great with a 1.4x but I have never been able to get it to AF even with non-reporting TC’s on my 20D/30D or rebels. The f/4.5 500’s are actually very good lenses and are not super heavy like the 600.
Greg
--
http://www.pbase.com/dadas115/
Greg
--
http://www.pbase.com/dadas115/
Keyboard shortcuts
- f
- Forum