What's the deal with f/5.6 aperture?
Screamin Scott wrote: …the apertures at which most lenses are calibrated for...
It is more like at each end of the ring, one
will feel the effect of diffraction, Scott.
Light is free… capturing it is not!
Nikon Shooter wrote:
Screamin Scott wrote: …the apertures at which most lenses are calibrated for...
It is more like at each end of the ring, one
will feel the effect of diffraction, Scott.
Diffraction occurs at the smaller lens openings due to the bending of the light causing separation of the color waves. www.kenrockwell.com/tech/diffraction.htm
Screamin Scott wrote: Likely because most lenses are sharpest a few stops down from wide open, thus F5.6-F8 would be the apertures at which most lenses are calibrated for, for best performance across the frame...
That's what I thought it was, but then again I thought f/8 was sharpest point. 
Latest Reviews
The Canon EOS R100 is an entry-level mirrorless camera introduced in 2023. But just because it’s an entry-level camera doesn’t mean it’s a bare-bones camera. Find out why in this review!
Nikon’s retro-looking Nikon Zfc is anything but retro. Under its classic body is a host of features and amenities that make it a worthwhile compact mirrorless camera for 2024.
The Canon EOS R50 is one of the newest R-system cameras from Canon. Is it worth your money? Find out all the details you need to know in this comprehensive review.
The Sony FE 70-200mm f/2.8 GM OSS II is Sony’s flagship mirrorless zoom lens. As such, it’s loaded with features and has a top-shelf build quality that makes it a top pick!
Forum Top Posters
-
1
TCav 6 posts -
2
Randy Shaw 4 posts -
3
Prago 4 posts -
4
Foggy 4 posts -
5
Razky 4 posts -
6
CharleyL 3 posts -
7
Scotty 3 posts -
8
db3348 3 posts -
9
CaptNemo 3 posts -
10
Sandy Smith Photos 3 posts
 |  |
 |  |
Latest Articles
Creating impactful photos of landscapes depends on many factors, not the least of which is your talent behind the lens. This guide explores other elements required for the best product.
The Canon EOS R100 is an entry-level mirrorless camera introduced in 2023. But just because it’s an entry-level camera doesn’t mean it’s a bare-bones camera. Find out why in this review!
Are you ready to upgrade your camera? Before buying new, you might consider the value of purchasing used gear to save money.
The Olympus OM-D E-M10 Mark IV is a micro four thirds camera released in 2020. It’s an entry-level system along with the OM-D E-M5 Mark III. Use this guide to determine which one is best for you!
Blue hour photography might not be as well known as golden hour photography, but it is every bit as good a time to create epic images of landscapes. Learn how in this quick tutorial!
Nikon’s retro-looking Nikon Zfc is anything but retro. Under its classic body is a host of features and amenities that make it a worthwhile compact mirrorless camera for 2024.
Moving from taking snapshots of your dog to creating beautiful images doesn’t have to be that difficult! Use the tips outlined in this dog photography guide, and you’ll get better results in no time.
Acrylic print photos are a beautiful way to display your favorite images. But they don’t come without some questions. Get all the answers you need about this medium in this guide!