In alphabetical order (@dik not yet): name naam size (upright) wingspan wren winterkoning 10 sand martin oeverzwaluw 12 house martin huiszwaluw 13 short-toed lark kortteenleeuwerik […]

Reach = (16/25 x 10/6 x 630/750) 2 x 1.0 => 80 % detail 7of benchmark picture. CLight x CAtm x CLens x CSensor = […]

Foto at top: Holland House Sparrow (Huismus) S 25cm D 6m EQ 375mm sun Z50 Z 50-250mm f/4.5-6.3 APERTURE mode Birds 1/1000 second ISO 220 […]