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FORUMS Photography Talk by Genre Motorsports Talk 
Thread started 31 Oct 2013 (Thursday) 10:30
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300 or 400 Prime?

 
Franksie
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Oct 31, 2013 10:30 |  #1

I did a search but couldn't find exactly what i was after,

I have a 70-200 f2.8 L IS II and was intending to get a 1.4TC to get a 280mm f4 IS at the long end, but i would also like to get a longer prime lens for use at BTCC, DTM and Moto GP events.

Would the 300mm f4 be a waste given that i can get to 280 with the 70-200 plus TC?

Ultimately i will get to 400mm f5.6 with the TC on the 300 or should i just go straight to the ef 400 f5.6 with no TC?

It seems that going the way of the 300 i can have a faster 300mm with the option to extend with the the TC as well as having IS?


EOS 600D, willingness to learn, desire to succeed

  
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colintf
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Oct 31, 2013 11:01 |  #2

Have you tried a 100-400?

It's great on the 5d3 for BTCC untill it gets darker




  
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colintf
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Oct 31, 2013 11:04 |  #3

A prime is great on s second body but could be limiting if using just the one body if you are moving around the track taking photos
If you are stating in one spot then maybe a prime on its own could be good

You could try renting before buying to experiment a bit




  
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Franksie
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Oct 31, 2013 11:55 |  #4

Sorry, i missed out a key detail - i intend to get a 7D so i will usemy 600d as asecond body. That would probably change peoples advice....

I may have to rent the 300 f4 and the 400 f5.6 as you suggest

My main priority is to get a large aperture to detail with the inevitable poor lighting which was why i had kind of dismissed the 100-400


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drewl
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Nov 01, 2013 13:47 as a reply to  @ Franksie's post |  #5

i think 300 is too close to the 280 you can get with the 70-200 +1.4

unless it was a 300 2.8. then at least you get a better aperture


70-200 and 400 pair well together, in my opinion. hell, i even crop my 400 shots sometimes, depending on the track i'm shooting. i haven't used a 400 5.6 though, just 2.8




  
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GeoffSobering
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Nov 01, 2013 14:03 as a reply to  @ drewl's post |  #6

I don't know about your access at the tracks where you shot, but I've found that without "inside the fence" credentials that 500mm is very useful, so I would suggest "longer is better".

I have less trouble at tracks using a prime lens since you generally have a pretty good idea of how things look from different vantage points.

I have a 100-400mm, but I find that I mostly use my 70-200mm and 500mm, the former for panning shots and the latter for head-on corner shots (ex. the apex of turn).

Some photos from Road America this spring: http://moving-target-photos.com/2013SVRAatR​A/ (external link)


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Bicknell55
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Nov 02, 2013 08:45 |  #7

I had the 100-400 but found myself using it mostly at 400 so I sold it and picked up the 400 prime. At times I wish I had went with the 300, and then could use my 1.4 converter with it to get me over 400.


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Franksie
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Nov 03, 2013 14:24 |  #8

Bicknell55 wrote in post #16418255 (external link)
I had the 100-400 but found myself using it mostly at 400 so I sold it and picked up the 400 prime. At times I wish I had went with the 300, and then could use my 1.4 converter with it to get me over 400.

This is my exact thought process too...


EOS 600D, willingness to learn, desire to succeed

  
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DanAnCan
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Nov 03, 2013 14:30 |  #9

If you plan to use the teleconvertor, you'll need more reach!

look at 1 of these 3 lenses: 300 F4, 400 5.6, 100-400 4.5-5.6....

when I had the 100-400, it was at 400 90% of the time

I would suggest the 400 5.6 prime route and later on if you find the gap between 200 and 400 too big, the 70-200ii takes a TC quite well


Canon 5D3/5D2/8-15L/24-70LII/Σ35/85LII/135L/200L F2/Σ300 EX DG/EF TC 1.4 & 2X III/EX580 II/ PCB Busy Bee Kit

  
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DanAnCan
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Nov 03, 2013 14:33 |  #10

for me, if I feel i'll be using a lens with a TC most of the time, it would be better to save for the longer lens....

you'll sacrifice more than a stop of light witch a TC: your AF will be slower and less accurate. Im not saying you wont be able to get by with the TC, but your keeper rate will be lower, especially with tracking moving subjects


Canon 5D3/5D2/8-15L/24-70LII/Σ35/85LII/135L/200L F2/Σ300 EX DG/EF TC 1.4 & 2X III/EX580 II/ PCB Busy Bee Kit

  
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Franksie
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Nov 03, 2013 17:09 |  #11

The TC is going to be a gift from my parents so i will be saving myself for either the 300 f4 or the 400 f5.6 - at least they are similarly priced so I can make the decision once I have the cash saved!

I guess I'm just worried f5.6 won't be any good on overcast spring days


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Bicknell55
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Nov 03, 2013 22:21 |  #12

I can't say I've ever had an issue with AF speed with the 400 f/5.6.


If you can't fix it with a hammer you've got an electrical problem.
http://www.brentsmithp​hotography.com/ (external link)http://brentsmith.smug​mug.com/ (external link)

  
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Franksie
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Nov 04, 2013 07:14 |  #13

Bicknell55 wrote in post #16422420 (external link)
I can't say I've ever had an issue with AF speed with the 400 f/5.6.

What about performance in low light?


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Bicknell55
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Nov 08, 2013 22:27 |  #14

Franksie wrote in post #16423012 (external link)
What about performance in low light?

I've never used it at night. I'd imagine it would be slower than say a f/4 but that's to be expected.


If you can't fix it with a hammer you've got an electrical problem.
http://www.brentsmithp​hotography.com/ (external link)http://brentsmith.smug​mug.com/ (external link)

  
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chopperdave
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Nov 09, 2013 16:51 |  #15

I have a 400 5.6, I love it*.
*for what it is.
I recently shot it with my 5D3 using the 1.4tc and it actually worked better than I expected. Whithout it, I really like it.
At night, its ok with the 5D3 but not the 7D.


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300 or 400 Prime?
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