Wide aperture shooting - what's the trick?!?!?
/forum/topic/710584/1

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TVRguy
Registered: Feb 18, 2005
Total Posts: 593
Country: United States

well... here is a sample of what I'd call a reasonably sharp shot. I BELIEVE it is "more likely" to front-focus, which may have happened slightly in this shot. Either way, if I could get results like this with people, handheld, I'd be pretty happy.

This was wide open (POSSIBLY F/2 but I"m pretty sure wide open). I took a series starting wide open, this was the first shot. Braced my elbows on the countertop.



This image is copyrighted by the owner




to downlaod the whole file. remove the space at the beginning of the URL:
h ttp://images42.fotki.com/v1380/filepE4b/1668d/2/242648/6955734/RokkorSample002.jpg

This was processed from RAW using Capture One, with auto-correct. The contrast boost helped a lot, wide open this lens has mediocre contrast and color.

I will try the ruler test with a tripod to figure out the pattern.

Thanks


TVRguy
Registered: Feb 18, 2005
Total Posts: 593
Country: United States

Ok - now I"m getting somewhere... :-) These are with available light, wide open at 1.4:




This image is copyrighted by the owner




The "macro rocking" method seems to work best. Still mostly throwaway... but now getting some shots that look pretty good.

And the lens is PLENTY sharp - these are WIDE OPEN. Contrast and color are not great at f/1.4 but that is manageable.

full download:
ht tp://images48.fotki.com/v1406/filek56y/1668d/2/242648/6955734/RokkorSample008.jpg



This image is copyrighted by the owner



full download:
ht tp://images48.fotki.com/v1406/file4QyN/1668d/2/242648/6955734/RokkorSample007.jpg

Another:

This image is copyrighted by the owner




whole file:
ht tp://images46.fotki.com/v1413/file5PP2/1668d/2/242648/6955734/RokkorSample003.jpg

Thanks
-Glenn


Mike Ganz
Registered: Sep 06, 2006
Total Posts: 1833
Country: United States

TVRguy wrote:
Ok - now I"m getting somewhere... :-)


You should still give consideration to a focus screen that's more conducive to manual focusing...you'll be able to focus that much quicker (without the macro 'rocking'), and your keeper rate will jump up significantly.



TVRguy
Registered: Feb 18, 2005
Total Posts: 593
Country: United States

I agree, Mike. I would like to be able to shoot more spontaneously...

So now I've just got to pick the right one :-)

Thanks
-Glenn



sworth
Registered: Nov 06, 2008
Total Posts: 115
Country: United States

It helps to use just one focus point. That way, you know exactly what AF is locking in on.



TVRguy
Registered: Feb 18, 2005
Total Posts: 593
Country: United States

sworth, this is all manual focus :-)



TVRguy
Registered: Feb 18, 2005
Total Posts: 593
Country: United States

You know - it's kind of cool NOT being a sharpness junkie for once.



This image is copyrighted by the owner




This is going to be fun :-)

Thanks
-Glenn


ISO1600
Registered: Jul 06, 2005
Total Posts: 3279
Country: United States

some of you guys are shakey bastards if you can't handhold a 50 at 1/100th.



TVRguy
Registered: Feb 18, 2005
Total Posts: 593
Country: United States

Did you ever see "Blazing Saddles"?

"but this is the hand I shoot with...."

That's me :-)

Actually partly due to a blood sugar condition - but hey, I never claimed to have steady hands.



TVRguy
Registered: Feb 18, 2005
Total Posts: 593
Country: United States

So let me ask this - if I get the Ec-S screen, I'd have to change it out occasionally? How hard is that to do?

I have the following lenses:

AF:
Vivitar 100mm 3.5 macro (more like a MF lens, but it's f/3.5 so...)
Canon EF 17-40 F4L
Canon EF 70-200 F4L
Tamron 28-75 2.8 - this is the one on the camera 90% of the time
Canon 50mm 1.8 II

MF:
Zenitar 16mm fisheye
Minolta Rokkor-X PF 55mm 1.4

I guess I'd have to choose for each occasion, if I prefer MF or AF, and choose the focusing screen that works best? What about all this shimming?

Changing screens doesn't sound like something I want to do on a regular basis...

Thanks
-Glenn



cogitech
Registered: Apr 20, 2005
Total Posts: 10967
Country: Canada

Nah, just get the Ec-S and leave it in.



TVRguy
Registered: Feb 18, 2005
Total Posts: 593
Country: United States

but won't that be a problem with the F4 lenses?? will I have a dark viewfinder?

thanks



HansenTsang
Registered: Feb 22, 2008
Total Posts: 450
Country: United States

Yes but from your list you only have AF lenses at f4. I don't like to manual focus on f4 lenses with any screen unless it is very bright and sunny.



cogitech
Registered: Apr 20, 2005
Total Posts: 10967
Country: Canada

TVRguy wrote:
but won't that be a problem with the F4 lenses?? will I have a dark viewfinder?

thanks


Dark?

It's all relative.

I stuck my Ee-S (the 5D equivalent of the Ec-S) in on day 3 and it has been in there ever since.

I can use it with my f5.6 mirror lens (manual focus), and for slower AF glass it is fine too. People overstate the darkness issue in my opinion. The only way to find out is ...



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