Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2019 iMac up to 128GB

Sony 16-35mm f/2.8 GM: Imaging Performance @ 16mm, Single Frame vs 3-Frame Stack: Flowers in Meadow to High Peaks, Dusk

See Sony mirrorless wish list.

This 3-frame focus stack at 12mm at f/11 (using Zerene Stacker) compares what is possible with a single frame to a focus stack. The difference in total sharpness is not dramatic at first glance, since f/11 at 16mm does have a good depth of field. But no single frame is up to the job for an image like this, particularly with Sony lens skew issues and field curvature, so the foreground and outer zones really benefit:

Sony 16-35mm f/2.8 GM: Imaging Performance @ 16mm, Single Frame vs 3-Frame Stack: Flowers in Meadow to High Peaks, Dusk

Includes images up to full resolution. Also includes crops showing the stacked result versus , close/far frames.

Focus stacking is a tool that should be mastered by any serious landscape photographer for any scene like this one, since depth of field can never be adequate for this extreme near-far composition. Focus stacking overcomes:

See my tutorial/how-to in Making Sharp Images.

f11 @ 1/50 sec, ISO 100; 2017-08-15 18:48:24 [focus stack 3 frames]
Sony A7R II + Sony FE 16-35mm F2.8 GM @ 16mm

[low-res image for bot]
128GB Memory in iMac 5K

Up to 128GB for 2019 iMac 5K!
Up to 64GB for 2015/2017 iMac 5K

Save nearly 50% over Apple pricing
OWC Thunderblade Thunderbolt 3 SSD
Gen 2!

Blazing fast, 1TB, 2TB, 4TB, 8TB.

Lloyd’s all-time favorite SSD!

√ No more slow and noisy hard drives!

Save the tax, we pay you back, instantly!
B&H Deal ZoneDeals by Brand/Category/Savings
Deals expire in 20 hours unless noted. Certain deals may last longer.

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2019 diglloyd Inc, all rights reserved.