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John Power Registered: Jul 03, 2003 Total Posts: 9387 Country: United States |
I was doing a few shots yesterday and I ran across this scenario. Here is one exposure for the sky and 1 for the subject matter. Needless to say, when I exposed for the subject matter the highlight warning was blood red for the sky. Is there a way to expose a scene like this so you get a decent exposure for all elements in one shot? |
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freetime101 Registered: May 12, 2008 Total Posts: 343 Country: United Kingdom |
In one shot, other than using fill flash - no |
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freetime101 Registered: May 12, 2008 Total Posts: 343 Country: United Kingdom |
Hope you don't mind but I did a (very) quick photoshop edit of the two images - if you do mind just pm me and I'll delete it. ![]() ?t=1227455431 The two original images are slightly different compositions so didnt line up exactly, hence the pretty rough fit... |
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John Power Registered: Jul 03, 2003 Total Posts: 9387 Country: United States |
That's good. Now if I could figure out exactly how you did that. |
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freetime101 Registered: May 12, 2008 Total Posts: 343 Country: United Kingdom |
I placed the lighter photo (with the blown sky) ontop of the darker image, after ajusting the size and rotation to line up the images (they're still not exact but I tried) I used a layer mask to hide the blown sky. You could also use the colour select tool to select whites which would be more accurate (there is a bit above the trees which is still blown). |
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freetime101 Registered: May 12, 2008 Total Posts: 343 Country: United Kingdom |
Another option is a Neutral Density graduated filter (ND grad), this is a plate of glass held infront of the lens which is darker at the top than the bottom. |
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camey Registered: Jul 30, 2003 Total Posts: 892 Country: United States |
Not sure if the Canon camera can do the same trick but the Nikon D3 has 1.5 - 2.0 stops of overexposure latitude so you just need to shoot one picture somewhere in between these two, process it with high and low exposure settings then combine the images. |
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bacilonur Registered: Aug 14, 2006 Total Posts: 2698 Country: United States |
John, why can't you use a flash? That's one of the best times to have a good speedlite or strobe. |
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John Power Registered: Jul 03, 2003 Total Posts: 9387 Country: United States |
I did. I was shooting in Av and was shuttling between +3 and -3 FEC. I was also shooting thru a Q39 softbox |
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shatterkiss Registered: Sep 30, 2004 Total Posts: 3894 Country: United States |
Manual flash and exposure settings are your friend. Meter the scene, set your flash and aperture for the foreground exposure that you want, adjust the shutter speed until you get the background exposure that you want. Done and done. |
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John Power Registered: Jul 03, 2003 Total Posts: 9387 Country: United States |
Thanks Simon. You are always ready to help and I know it is second nature to you but trying to convert this to reality is not so easy for me. It would be like me saying to you: |
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shatterkiss Registered: Sep 30, 2004 Total Posts: 3894 Country: United States |
Honestly, in a weird way, I find flash easier to deal with outside during the day than inside: the reason being that the sun provides a lot of very forgiving fill light if you let it. Working indoors, the only light there is light that you've created, which is a lot more pressure. |
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John Power Registered: Jul 03, 2003 Total Posts: 9387 Country: United States |
OK. I understand this explanation. I will print this out and set up some practice sessions with my model (read mannequin) under similar circumstances. So your approach is purely manual. No ETTL. |
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turnert Registered: May 19, 2004 Total Posts: 2819 Country: United States |
John Power wrote: |
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cgardner Registered: Nov 18, 2002 Total Posts: 8543 Country: United States |
I have nothing against manual flash, in fact I use it all the time. But ETTL will also work quite well in that situation. See this high speed FP mode flash test I did with my Canon 580ex in ETTL mode (Link to PDF tutorial ) ![]() That shot looks underexposed perceptually because the sensor can't record both highlight detail and the rest of the range accurately because the sensor range is about 7 stops and the scene about 10 stops. Then I just reached up and turned on the flash in high speed mode and took another shot. FEC on the flash was set at zero... ![]() The ETTL-II evaluative metering balanced the shadow side of the foreground to the ambient lit highlights, as shown by the histogram of just the foreground... ![]() So it is quite easy to get good results with ETTL flash if you make the effort to understand how it works. The key factor is getting the ambient exposure correct in the technical sense of not blowing the highlights. That requires understanding that a backlit scene with correctly exposed highlights will have mid-tones and shadows which perceptually look under exposed as in the first shot above. BTW - the point of that test was to show a 580ex has plenty of power in high-speed mode if it is used in combination with wide apertures (the rationale for using it). Not a lot of flash power is needed at 10ft when the lens is wide open at f/2.8. Try shooting at f/2.8 with your manual flash in direct sun Chuck |
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John Power Registered: Jul 03, 2003 Total Posts: 9387 Country: United States |
You know Chuck, now that you mention it I realize I did not have my flash in high speed sync even though I taped a note on it that says "HS sync in AV outdoors" So much for notes. (This is what happens when you practice law all week and try to act like a real photographer on week-ends |