Sharpness distance
May 26, 2020 01:42:21 #
No one really answered his question! Depth of field is a factor of: distance from the subject, focal length and aperture. Go to www.dofmaster.com and you can plug in your camera, lens, f/stop, and distance to the subject. That will give a real good idea as to what the depth of field will be for a particular situation.
May 26, 2020 06:38:35 #
bhad wrote:
When one says “smaller” aperture setting, does it mean a LOWER f-stop number? Or higher number to make the aperture smaller? Thanks.
If you think of f-stops as the fractions they truly are larger numbers like f-22 equals 1/22 (a smaller fraction) than say f-4 or 1/4. Aperture size represents a fraction of lens focal length. That is why f-22 is a larger actual size on a 200mm lens as it is on a 50mm lens.
May 29, 2020 06:10:38 #
It's sharp, you can see the downy hair on her arms but the image looks like a composite to me. I can see the blade of grass over the left plimsol and other fine details but it just LOOKS like a composite and I'm not sure I can say why.
May 29, 2020 07:25:31 #
I would guess it’s the combination of 1.2f and hss flash. Definitely not a composite. I’m testing today using some helpful advice from the group
May 29, 2020 17:45:22 #
Frostbyte wrote:
For a good sharp photo, how far away can you go to still expect fine detail in the face/eyes?
Maybe I’m expecting too much but I would think eyes should be able to still look sharp from quite the distance.
I’m using a 5dm4 85mm1.2f lens.
Maybe I’m expecting too much but I would think eyes should be able to still look sharp from quite the distance.
I’m using a 5dm4 85mm1.2f lens.
How about a little experiment. Pick a subj, shoot it from various distances, using same bady/lens combo, then compare results. Viola - you have your answer.
May 29, 2020 18:16:46 #
smussler wrote:
Your responses are always very informative. The very comprehensive list there, but I have to ask - What are Eastburn particles? Google search lead me nowhere. Spell check doesn't like it either, but then spell check doesn't like autofocus or EXIF either.
Sorry about that, my apologies for the TYPO. It should have read "AIRBOURNE"! Too bad I opted out of typing class in high school and elected electrical shop instead. Back in the day, secretarial skills were for the young ladies- little did I know! In those days, keyboards were in pianos! Not only did I miss out on developing accurate typing skills but there were some really pretty ladies in that typing class- RATS! I ended up making a telegraph key in the shop and an electromagnetic pick-up stick. What's worse, I served with an AIRBOURNE division in the army, you'd think I would know how to spell that word! My spell check didn't pick up on it either!
Also, I should know better- I do lots of industrial photography in factories, sawmills, demolition and construction job sites, places where all kinds of smoke and fumes are present- airborne particles are my life- I learned to wear masks long before the pandemic.
May 30, 2020 20:06:21 #
smussler
Loc: Land O Lakes, FL - Formerly Miller Place, NY
E.L.. Shapiro wrote:
Sorry about that, my apologies for the TYPO. It s... (show quote)
LOL. No problem, and here I was thinking that I was going to learn a new word.
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