Improving Quality
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Discussion

Jetl3on

Original Poster:

1,409 posts

225 months

Monday 25th June 2012
quotequote all
I like the shot, but I keep getting told the quality is not great, which I am aware of, but struggling to improve it, I appreciate light burn is a challenge, what am I doing wrong? D90, 12-24mm, from memory it was ISO200, F22, Tripod, remote release and fingers crossed.


paul911

2,771 posts

262 months

Monday 25th June 2012
quotequote all
At f22 you’re getting diffraction


Also what area of the scene did you focus on?

smile

Edited by paul911 on Monday 25th June 13:32

RobbieKB

7,715 posts

212 months

Monday 25th June 2012
quotequote all
paul911 said:
At f22 you’re getting diffraction


Also what area of the scene did you focus on?

smile

Edited by paul911 on Monday 25th June 13:32
That's an interesting read actually. I though diffraction only started kicking in at f/18+, clearly I'm wrong. Paul, you're far my landscape senior, do you shoot at f/11 and then stack in PP for foreground?

Jetl3on

Original Poster:

1,409 posts

225 months

Monday 25th June 2012
quotequote all
Good question, im not sure tbh, I was paying too much attention to the dissappearing light and trying different settings inbetween shots. I try to steer clear of the light source generally, so possibly the end of the curve? I also may have set my AE incorrectly. Just reading up on diffraction, scary.

What do suggest? Diffraction implies using F8/F11 with higher ISO, what should my focussing point be?

Edited by Jetl3on on Monday 25th June 13:54

paul911

2,771 posts

262 months

Monday 25th June 2012
quotequote all
The further you get away from the lens sweet spot (usually around f8) the more chance of diffraction affecting the image. I hardly ever blend two images Rob, focus one third into the image is usually enough. I usually focus on the foreground object and the rest of the scene remain in focus. No real need to go beyond f11 on a wide angle lens. Have a read up on hyperfocal distance too.

Edited by paul911 on Monday 25th June 14:10

...Mole...

2,780 posts

220 months

Monday 25th June 2012
quotequote all
I find Unsharp Mask in Photoshop can help a bit when it comes to Diffraction.
Just got to be careful with the settings so you don't get any Halo's or weird artifacts.

RobbieKB

7,715 posts

212 months

Monday 25th June 2012
quotequote all
paul911 said:
The further you get away from the lens sweet spot (usually around f8) the more chance of diffraction affecting the image. I hardly ever blend two images Rob, focus one third into the image is usually enough. I usually focus on the foreground object and the rest of the scene remain in focus. No real need to go beyond f11 on a wide angle lens. Have a read up on hyperfocal distance too.

Edited by paul911 on Monday 25th June 14:10
I've always had a sort of in built gauge of where I'd need to focus to capture foreground and infinity but I think I might have got it wrong more than once and had too narrow an aperture which explains my occasionally soft landscapes.

3 years I've been doing photography and I read articles every day and I'm still getting such major things wrong, even if only marginally.