Questions about shooting with 1D MkIV vs. 7D

[garykohs]

I didn't do a very good job with my new 1D MkIV in my first baseball outing.

The first thing was I thought I was shooting raw and I was shooting jpeg the whole night. It did teach me that AWB is better on the MkIV.

This is MkIV at ISO 25,600 and 1/800 at f6.3.


This is 7D at ISO 12,800 and 1/250 at f5.


[Note that the 7D shots were processed with DxO while the MkIV shots weren't, so you can't really compare noise, etc. from the above two pictures. Also these aren't great shots; I'm just comparing exposure. Both of these are with the 100-400L IS.]

There seems to be a considerable difference in ISOs here. I was shooting Tv at 1/800 with the MkIV when I went to 25,600. I fully expected to have to shift to Av (which I should have anyway) and wide open because I was only getting 1/125 at 12,800 on my 7D under the same light. But I never had to; I stayed at 1/800 the whole game.

Question #1:
So does anyone else think the MkIV is under reporting ISOs vs. the 7D? [I know my A700 at 2500 gives about the same exposure as the 7D at 3200, which isn't a drastic difference.]

Question #2:
I used evaluative metering with the MkIV whereas I've been using center-weighted metering on the 7D. The evaluative did a nice job on the infield shots but not as well on the outfield shots. What does anyone recommend?

Question #3:
Does anyone have any experience with the Sigma 100-300/4? I'm thinking that would be a better low light compromise - for baseball - with either of these cameras than my current 70-200/2.8 IS.

[Matt_G]

What caused the "drop shadow" look in the second image?

I used evaluative metering with the MkIV whereas I've been using center-weighted metering on the 7D. The evaluative did a nice job on the infield shots but not as well on the outfield shots. What does anyone recommend?

Stop letting the camera meter... set it yourself. Especially in consistent light. I know parts of the field are different but you know that so adjust to it.

So does anyone else think the MkIV is under reporting ISOs vs. the 7D? [I know my A700 at 2500 gives about the same exposure as the 7D at 3200, which isn't a drastic difference.]

1/3 or so stop difference in exposure between systems is fairly common from what I haves een posted.

Does anyone have any experience with the Sigma 100-300/4?

Still stuck on a zoom I see. You have two cameras, why not the 300 2.8 on one and the 70-200 on the other. Although I think over time you will find the 70-200 rarley gets used.

[photojournalist]

Why are u shooting this in f6.3 and f5?

Nevermind, didn't read the rest of what you've written.

[ldelacruz]

Gary,
I think your over thinking things? These are 2 completely different cameras and the pictures are completely different backgrounds so the results will not be the same. As long as you let the camera think for you these are the results you will get. In your photos you have different tones and lighting so the metering will be all over the place. Read a few books on exposure and I think you might have a better understanding of what the pros have told you in the past. Hope this helps?

Do you have photos in mind that you are trying to duplicate? If so link to them because I am very confused as what type of pic your trying to acheive.

Matt,
The shadow might be from the processing?

[arich]

I disagree with everyone. I think the MkIV is broken and you should give it to me, it would never give you bad shots if you did that

But seriously, the guys above are right, the more control you can take over your camera settings the better. You'll find that your shots improve across the board as you start to understand what settings need to be dialed in when. Those jerseys are white, grab one of the players before the game and get a reading off of his shirt.

[Tom]

Sell the 1D4. Get 2 7D bodies and a 300mm 2.8.

A 300mm on a 7D is a 480mm 2.8 lens. A 100-400mm on a 1D4 is a 520mm F5.6. You lose 2 stops of light and gain 8% reach.

It doesn't look like you are exposing correctly and trying to fix it in post.

You need to learn to figure out the WB and shoot in a manual white balance.
You need to learn to measure exposure and shoot manual.

What caused the "drop shadow" look in the second image?

That is from poor post processing. Adjusting clarity to 100% will do that. When you screw around with the exposure/recovery/fill/contrast/clarity a lot, you will get that halo a lot if you don't do it right.

Q1

So does anyone else think the MkIV is under reporting ISOs vs. the 7D?

I don't think you are shooting well.

Q2

I used evaluative metering with the MkIV whereas I've been using center-weighted metering on the 7D. The evaluative did a nice job on the infield shots but not as well on the outfield shots. What does anyone recommend?

Learn to adjust your exposure manually.

Q3

Does anyone have any experience with the Sigma 100-300/4? I'm thinking that would be a better low light compromise - for baseball - with either of these cameras than my current 70-200/2.8 IS.

Forget about zooms and get the 300mm 2.8.

[arich]

Originally Posted by thomas campbell

sell the 1d4. Get 2 7d bodies and a 300mm 2.8.

A 300mm on a 7d is a 480mm 2.8 lens. A 100-400mm on a 1d4 is a 520mm f5.6. You lose 2 stops of light and gain 8% reach.

It doesn't look like you are exposing correctly and trying to fix it in post.

You need to learn to figure out the wb and shoot in a manual white balance.
You need to learn to measure exposure and shoot manual.


That is from poor post processing. Adjusting clarity to 100% will do that. When you screw around with the exposure/recovery/fill/contrast/clarity a lot, you will get that halo a lot if you don't do it right.

Q1

i don't think you are shooting well.

Q2

learn to adjust your exposure manually.

Q3

forget about zooms and get the 300mm 2.8.

+1

[ldelacruz]

Gary,
I sent you a PM.