Thursday’s Task

John Holbrook

Well-Known Member
I used to do a lot more of this with the tilt function of my 24mm TS-E lens before I got a camera that made focus stacks so easy.

Wahkeena Falls:

View attachment 47944

The Queen's Garden in Bryce Canyon:

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A Badwater sunrise:

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Alan, all three of your images are so well captured and edited––and with the focus stacking! The Wahkeena Falls image is really special "near to far" in composition. The Badwater sunrise image's colors are very nice as well.
 

JimFox

Moderator
Staff member
From Factory Butte.

Not Focus Stacked as I am a firm believe in HyperFocal Distance and have only Focus Stacked maybe twice in 50 years of photography.

For me it's shooting at f13 that gives me enough distance, any more then that and there is defraction that comes in and starts eating at the sharpness. Well at least for my lenses.

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AlanLichty

Moderator
Alan, all three of your images are so well captured and edited––and with the focus stacking! The Wahkeena Falls image is really special "near to far" in composition. The Badwater sunrise image's colors are very nice as well.
John - no focus stacks here. These are single shots using the tilt function of a tilt-shift lens.
 

John Holbrook

Well-Known Member
From Factory Butte.

Not Focus Stacked as I am a firm believe in HyperFocal Distance and have only Focus Stacked maybe twice in 50 years of photography.

For me it's shooting at f13 that gives me enough distance, any more then that and there is defraction that comes in and starts eating at the sharpness. Well at least for my lenses.

View attachment 47953
Beautiful capture Jim—I love the composition and great depth of field too! Very nice! I generally “stop’’ at f-stop 11 also because of lens diffraction—principally from what I’ve read, not so much what I’ve observed in my own files. With tripod, I have used f22 to gain longer shutter speeds with waterfalls, etc. and then shoot same scene again at f/11 or f/8 to freeze other elements and combine the two files with masks. Nowadays I use ND filter(s).
 

JimFox

Moderator
Staff member
Beautiful capture Jim—I love the composition and great depth of field too! Very nice! I generally “stop’’ at f-stop 11 also because of lens diffraction—principally from what I’ve read, not so much what I’ve observed in my own files. With tripod, I have used f22 to gain longer shutter speeds with waterfalls, etc. and then shoot same scene again at f/11 or f/8 to freeze other elements and combine the two files with masks. Nowadays I use ND filter(s).
A coupl of years ago when I first started really being aware of refraction, I went through all of my lenses out at Joshua Tree one afternoon and took shots at each f stop, and then back at home went through them all. F11, is generally a good fstop I think, but what I found on mine was f13 gave me a lot more depth of field, with just the tiniest of softening from refraction. To the point that unless you pixel peep, you would never notice it, and my normal sharpening takes care of it anyway. Now f16 and up, the defraction was really noticeable, so I also don’t use it unless I need a sunstar or need to drop my shutter speed for water shots. But even that isn’t too often, since the D810, D850 has a native ISO of 64 and can go down to ISO 32, I can usually get the shutter speed I want with just a polarizer on.
 

John Holbrook

Well-Known Member
Interesting topic. Here are a couple of mine.

Owens River, Eastern Sierra.
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Mt Shuksan, WA
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Jameel, I don't know which is more perfect––beautiful images both. Of course the foreground flowers in the second image are definitely a bonus! But then I love the receding stream in the first which makes an interesting composition––very nice and love the path of blue water to sky.
 

Ken Rennie

Well-Known Member
This image is focus stacked and exposure blended. No hyperfocal shooting will give sharp images from less than 3ft to more than 300ft. There was an app that combined, Mp of sensor, sensor size, focal length, aperture, min and max distance to be sharp to give you the focusing distance and aperture. It was a paid app and I never purchased it but it sounded interesting. I used to be able to calculate these kind of things but have now forgotten most of the maths and most importantly, life is too short. Ken
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