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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses
Thread started 12 Apr 2006 (Wednesday) 01:11
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400mm Prime or 300mm Prime + 1.4 TC

 
StealthLude
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Apr 12, 2006 01:11 |  #1

Im lookin to get a long lens here, I really want a prime lens for my longest lens...

I was looking into getting the 400mm 5.6 prime,

for a few hundred bucks, I cna get the 300mm f4 IS prime with a 1.4tc.

I wanted to hear your guys opinion on the image quality of the 300 + the TC.

The reason I wanted to get a prime was really for the IQ, if the TC is really going to take away from that, then I rather just get a 100-400 lens...

And help with making a decesion like that? Am i missing out on something?

Image stabalizer is a pretty big deal to me, so that was also taken into consideration.


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LightRules
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Apr 12, 2006 01:19 |  #2

There's no free lunch; you can't have your cake and eat it too (well close if you have the 500IS or 600IS). The 400f5.6 is a little better than the 300f4+TC in terms of IQ. The latter gets you closer MFD and IS. The 400f5.6 has AF that screams too. The 100400IS is the most versatile and a good compromise (vis-a-vis these primes). If IS is that important, then the choice is narrowed down. If you want the absolute best IQ at 400mm, then it's the native prime.




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StealthLude
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Apr 12, 2006 01:30 |  #3

Anyone have pictures of the 300mm with the 1.4 TC?


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mrclark321
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Apr 12, 2006 01:38 |  #4

Since you already have the 70-200 I would go with the 400mm prime personally. AF is quicker and it's a little sharper and lighter than the 100-400. The 100-400 is an excellent lens and very capable, I can't comment on the 300mm because I never used it but I was in the same predicament and ended up with the 400 and glad I made the choice. :)

Dan


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Juan ­ Zas
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Apr 12, 2006 01:50 as a reply to StealthLude's post |  #5

StealthLude wrote:
Anyone have pictures of the 300mm with the 1.4 TC?

http://photography-on-the.net ...55284&highlight=300​+f%2F4


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Simon ­ Harrison
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Ingleby Barwick, Teesside
Apr 12, 2006 01:50 |  #6

Have a look on my website (link in my sig). Almost all of the shots in the online galleries were taken with the 300mm f/4 IS + 1.4 TC

Cheers,

Simon.


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calicokat
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Apr 12, 2006 02:05 |  #7

I'd go with a 100-400L for versatilty and Image Stabilizer. Great Lens


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chrishunt
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Apr 12, 2006 03:26 as a reply to calicokat's post |  #8

My vote, get the 300 + 1.4x. More versatile and you have IS for when you need it.

These might help:

http://photography-on-the.net/forum/showthre​ad.php?t=150692
http://photography-on-the.net/forum/showthre​ad.php?t=148875
http://photography-on-the.net/forum/showthre​ad.php?t=145047
http://photography-on-the.net/forum/showthre​ad.php?t=135902
http://photography-on-the.net/forum/showthre​ad.php?t=131090
http://photography-on-the.net/forum/showthre​ad.php?t=103852
http://photography-on-the.net/forum/showthre​ad.php?t=56149
http://photography-on-the.net/forum/showthre​ad.php?t=86745
http://photography-on-the.net/forum/showthre​ad.php?t=82026
http://photography-on-the.net/forum/showthre​ad.php?t=81034
http://photography-on-the.net/forum/showthre​ad.php?t=72091


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morehtml
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Apr 12, 2006 06:43 |  #9

The 100-400L would probably make the most sense for you here.


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DionM
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Apr 12, 2006 08:41 |  #10

I had the same dilemma.

I got the 400 5.6. I figured I liked the option of using it with a 1.4x TC.


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Jack ­ W.
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Apr 12, 2006 09:09 as a reply to DionM's post |  #11

My wife has the 100-400, and she's gotten some terrific shots with it. I haven't tried it myself yet.
As most of my shots are at longer distances, primes are the better choice for me.
I have the 300f/4L IS which I use with a Canon 1.4TC. The combo is terrific. Provided I do my part correctly, shots are razor sharp.
I like this setup as it gives me two excellent primes;
a 300f/4 and a 420f/5.6, both with IS (IS on a long lens is a must for me).

Jack


20D, 30D, 500f/4L IS, 300f/4L IS, 300f/2.8L IS, Canon 1.4TC, Canon 2xTC, 70-300IS, 17-85IS, EFS 10-22, Sigma 150 Macro, 3021PRO, RRS BH-40LR, Gitzo 1325, full Wimberley Head v2, Wimberley Sidekick, and a bunch of other stuff. :-)

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FlashZebra
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Apr 12, 2006 10:50 |  #12

StealthLude wrote:
I was looking into getting the 400mm 5.6 prime,
for a few hundred bucks, I cna get the 300mm f4 IS prime with a 1.4tc.

Here is a nice test report that shows what happens to a Canon 300mm F4 IS, with regard to sharpness, with 1.4X and 2.0X teleconverters.

http://www.eospix.com/​content-20.htmlexternal link

Here is also an overview of the 400mm or 300mm w/TC from one "expert's" perspective.

http://www.birdsasart.​com//faq_4f56or3is.htm​lexternal link

Enjoy! Lon


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Billginthekeys
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Apr 12, 2006 12:43 |  #13

well, sharpness wise i dont think youd be dissapointed with either prime. i am in the same dilema as you. and now my question is about the focus speed. i used the 300 prime in a store the other day, and the focus was SOOO fast, even faster than my 70-200. And ive heard that the 400 is the same (the 100-400 is fairly fast but has nothing on these). So my question is, those of you who use the TC on the 300, but much is the focus speed slowed down. lets say the primary use for the lens is flying birds, i dont want focus speed to be an issue with it. But at the same time the IS on the 300 is very effective ( i was shooting sharp pics in the store at like 1/100th or less), and the fact that it can also be a 300 f4 and a 420 5.6 (instead of only 400 5.6) is attractive. that way i could use the 300 for sports and 420 for birding.

So in short, how much focus speed does the 300 loose with the extender


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Jack ­ W.
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Apr 12, 2006 13:00 as a reply to Billginthekeys's post |  #14

Billginthekeys wrote:
So in short, how much focus speed does the 300 loose with the extender

With the 300f/4L IS+Canon 1.4TC on my 20D, the difference is VERY slight; it's still very fast. However, I haven't tried birds in flight yet.
The same combo on my 30D shows no difference in autofocus with the TC. The 30D is absolutely quicker and more accurate with autofocus. The 300f/4+1.4TC was the first thing I tried when I got the 30D. I noticed the improvement immediately, and have since confirmed it with my 300f2.8L IS+2xTC.
As I posted earlier, IS is more important to me than any minimal increase in focus speed.
A lens can be lightning quick with autofocus, but if I can't hold it steady, it does me no good (hey, I'm not 25 any more heh heh).

Jack


20D, 30D, 500f/4L IS, 300f/4L IS, 300f/2.8L IS, Canon 1.4TC, Canon 2xTC, 70-300IS, 17-85IS, EFS 10-22, Sigma 150 Macro, 3021PRO, RRS BH-40LR, Gitzo 1325, full Wimberley Head v2, Wimberley Sidekick, and a bunch of other stuff. :-)

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reewik
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Apr 12, 2006 13:25 |  #15

Do a search as I too asked the same question a few months back. I went with the 400 5.6L ... No regrets as it is an awsome lens. I too have the 70-200. About to get the 1.4x that can be used for both.


Hard, Hard , Hard decision to say the least.


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Canon 1D MKIII, 600 f4 IS, 85 1.2L
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400mm Prime or 300mm Prime + 1.4 TC
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