Marvelous Performance - 28 Nov 2020
After yesterday's abysmal performance capturing BIF using the Sony a7RIV and 200-600mm f/5.6-6.3 G OSS lens I headed back out for redemption. This time I paired the a7RIV w/ the 100-400mm f/4.5-5.6 GM OSS. What a difference!
A flock of Bonaparte's Gulls at Pt. Mouillee HQ were severely backlit for the most part, but allowed me the opportunity to test tracking and autofocus on the a7RIV w/o changing any settings. The camera performed marvelously. Approximately 90-95% keeper rate at 400mm and APS-C mode (EFL~560mm). I only deleted a handful of the ~1500 images I took. All images were AUTO-ISO to maintain 1/2000 sec. at f/9 (forgot to change to f/5.6); most were at ISO 1000 or lower.
Pte. Mouillee SGA (permit required Sep 1-Dec 15), Monroe, Michigan, US
Nov 28, 2020 12:30 PM - 12:50 PM
Protocol: Traveling
0.1 mile(s)
2 species
Bonaparte's Gull (Chroicocephalus philadelphia) 6
Ring-billed Gull (Larus delawarensis) 6
View this checklist online at https://ebird.org/checklist/S1
This report was generated automatically by eBird v3 (https://ebird.org/home)
Nov 28, 2020 12:30 PM - 12:50 PM
Protocol: Traveling
0.1 mile(s)
2 species
Bonaparte's Gull (Chroicocephalus philadelphia) 6
Ring-billed Gull (Larus delawarensis) 6
View this checklist online at https://ebird.org/checklist/S1
This report was generated automatically by eBird v3 (https://ebird.org/home)
This combo is a keeper and will remain from here on out. I'll be able to confidently use it for BIFs when the camera is at hand.
