Clapperboard

jerryC41 But I have seen remarks that are an infinite distance from wisdom. Not yours, of course.

Notorious T.O.D. Loc: Harrisburg, North Carolina

Where is infinity? In the jungle it might not be that far away...in space much farther...
I think you have received good explanations here already...
Many lenses don't even have the indicators on the lenses today as they did in the past.

Best,
Todd Ferguson

mborn Loc: Massachusetts

What I do with manual focus lenses that I utilize for Night Sky photography is to focus during the day at an object about 20 ft then use gaffer tape to hold the focus ring in place. I also make the ring where the focus is gives me infinity for that lens

lamiaceae Loc: San Luis Obispo County, CA

Yes, I've noticed it too.

jmvaugh Loc: Albuquerque

gvarner Loc: Central Oregon Coast

I've always viewed them as guides, not absolutes. Then you factor in DoF and voila, another can of worms. Focus is in the eye of the picture maker.

peterg Loc: Santa Rosa, CA

Agree. The fact that I've never seen anything infinitely far away bothers me to no end.

TheDman Loc: USA

Astrophotography is why I keep my Zeiss 21mm around. Infinity stop means I never have to wonder if I'm focused properly.

Pochon53

I don't understand any of this. If there are, say, mountains filling in the background of your shot, then the mountains are infinity; if the sun is disappearing into the water at the beach, then the sun is infinity, and so on, ad infinitum, to be corny.

mikeroetex Loc: Lafayette, LA

And I hate when there's kale in my salad....

boberic Loc: Quiet Corner, Connecticut. Ex long Islander

You are expecting precise marking on any lens. Each lens is ever so slightly different than every other lens. So the markings are merely "suggestions". Perfection doesn't exist. If you move the lens in either slightly one way or the other can you get good results? If so-end of problem. One must always remember- Perfection is the enemy of good.

GoofyNewfie Loc: Kansas City

https://www.youtube.com/watch?v=WcI7jgkwdCM

"It tastes like bug spray!"

tschuler

If you check the Merrriam-Webster dictionary, both pronunciations are correct for both 'coupon' and 'often'. However, pronunciation for 'often' with the 't' is designated as non-standard.

I have noticed the infinity focus going beyond the mark. I'm happy to see the reason for it. I have a hard time manually focusing. I seem to not be able to judge the sharp focus point when viewing through the view finder, so I rely on auto focus. However, sometimes my auto focus is not accurate or the auto focus can't determine the right focus point because of the low light or poor contrast. Then I am forced to do manual focus.

jerryc41 Loc: Catskill Mts of NY

I'd like to 1-10 rating systems raised to 11.

ken glanzer

After focusing at F4.5 with a bright image for convenience then using a smaller F stop with 8x10 & 4x5 lenses, focus shift was common at F16 mostly closer fortunately. The added depth of field tended to compensate for the focus shift. The shift was difficult to see on the ground glass as the image was 4F stops dimmer & difficult to pin point focus but often produced a fair picture. I never used F16 for this reason with these lenses as it's difficult to focus on ground glass. F22 was in focus (when previously focused at F4.5) with more depth of field but at a lessor resolution than F5.6 or F8. Some lenses at F16 focused beyond infinity that could be often easily seen on the picture. Some 35mm lenses had strange quirks also.
I was conducting lenses resolutions tests with a Nikon 50mm lens when I noticed a resolution shift at F8 but back on again at F11 & F16. I've not found the infinity stop to be off on all my 35mm lenses but will keep looking for it. When focusing use a pin point source of light to focus on like a small led light. Street lights at night are good focus points.