400 5.6 and 1.4 (1 Viewer)

graham catley

Well-known member

• Feb 27, 2007

• #1

with the ID in theory the 400 5.6 should AF with the 1.4 converter--I have struggled to find any reports of this combo with wildlife photos attched to suggest just how good it is though--anyone have any experience of using this combo on the 1D's?

 

Roy C

Occasional bird snapper

• Feb 27, 2007

• #2

I would also be interested in how this combo works on a 1 series.

 

Roy C

Occasional bird snapper

• Feb 28, 2007

• #3

I Posted this on another forum Graham and got a couple of responses.
One guy with a 1Ds MII and a 1Dn MIIn said "I do not like it, I lose a lot of contrast and sharpness on my 400 + 1.4"
Another user said it was ok and posted a couple of pics which I did not think was that great (I have done better with the combo on my 350D).

 

senatore

Well-known member

• Feb 28, 2007

• #4

I have got a 350D and the 400f5.6 and I recently bought a 1.4 converter but not the Canon I got the Kenko Pro 300DG.

Even with the pins taped the autofocus struggles a bit and the number of throwaway pics becomes higher when I have the converter fixed on.This might be because I did not get the Canon converter.

Max.

 

GYRob

Well-known member

• Feb 28, 2007

• #5

just did a test 1dmk2 400f5.6 +canon 1.4tc - 1/750 f8 iso 200 on 1shot
100% crop one sharpend one not , AF works fine but is a lot slower than bare len's but for none flight shots i dont think it would be a problem
ps c2 is sharpend just in case lol
Rob

 

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Roy C

Occasional bird snapper

• Feb 28, 2007

• #6

GYRob said:

just did a test 1dmk2 400f5.6 +canon 1.4tc - 1/750 f8 iso 200 on 1shot
100% crop one sharpend one not , AF works fine but is a lot slower than bare len's but for none flight shots i dont think it would be a problem
ps c2 is sharpend just in case lol
Rob

Click to expand...

Quality looks pretty good Rob and has sharpened up well. I guess the af is bound to slow up a bit as the bare lens is very quick at af.

 

C

Choderboy

Member

• Mar 3, 2007

• #7

What Canon has to say about af speed with a tc:

"the EF 1.4x or 1.4x II reduces lens drive speed by approximately 50~67% depending on the lens in use."

 

M

Malcolm Stewart

Well-known member

• Mar 3, 2007

• #8

senatore said:

This might be because I did not get the Canon converter.

Max.

Click to expand...

If you tried using a 1.4x Canon extender it would report the lens combo max aperture as f8, and you would not get AF on your 350D. (You'd need a 1 series body or an Eos 3.)

 

Peter Ericsson

Well-known member

• Mar 5, 2007

• #9

I bought the Kenko one with my 350D and 400 F5.6. I am honestly disappointed in the quality it delivers. I need to shoot atleast 1/800 for it to stay resonably sharp. Don't get that much light very often. Mind you, I always handhold my gear.

 

P

paul goode

Well-known member

• Mar 5, 2007

• #10

Peter Ericsson said:

I bought the Kenko one with my 350D and 400 F5.6. I am honestly disappointed in the quality it delivers. I need to shoot atleast 1/800 for it to stay resonably sharp. Don't get that much light very often. Mind you, I always handhold my gear.

Click to expand...

Hi Peter,

It would be interesting to see an image posted, maybe just the converted RAW or JPEG straight from the camera to see if its an equipment problem or camera shake causing the problem. I'm only wondering because to go back to 35mm film terms you're handholding a 896mm lens (assuming the tc's a 1.4) and thats a bl**dy long lens to handhold!
Again in film days the rule of thumb was to make the shutter speed at least the same as the focal length so the minimum shutter speed would be 1/1000th to expect a reasonable image. I've been shot down on this before but it's mentioned in enough books and magazines for there to be some logic in it.

Just a thought

Paul

 

Roy C

Occasional bird snapper

• Mar 5, 2007

• #11

Peter Ericsson said:

I bought the Kenko one with my 350D and 400 F5.6. I am honestly disappointed in the quality it delivers. I need to shoot atleast 1/800 for it to stay resonably sharp. Don't get that much light very often. Mind you, I always handhold my gear.

Click to expand...

Peter I use this combo but a Canon 1.4 tc. This is about the only time that I use a Tripod or Monopod. I have handheld this combo in good light (as Paul say 1/1000 or better) but in the main I find with this combo that support gives a much better image.

 

Peter Ericsson

Well-known member

• Mar 6, 2007

• #12

I have looked over my shots where I shot the same object with and without the TC. The pictures only differs substantially when not enough light is available and I shoot with too slow a speed. I simply have to learn the limitations of the set up and work within that.