Finally got a 200mm f4.0 for a bottle of wine... so could not resist although I clearly don't need it. Unfortunatly not the latest version which is only 400g but the MD rokkor which is over 500 g.
First tries is that it is lighter (700g for the 2.8) but same length. focusing is lighter image quality looks the same but it does not have the 2.8 opening nor the 8 blades bokey. Given the difference in price (I paid over 250-300€ for the 2.8) f 4 was probably the better choice.
Been making quite a bit of small birds picture (blue tits,...) in the garden with the 200mm 2.8 and 300s (*2) which gives me a 400 mm f 5.6 (eq 600mm FFeq) with a compact combined camera lenses weighing just above 1 kg.
Not sure which is quite more comfortable: the 500mm f8 mirror (lighter shorter focusing ring large diameter) or the 400mm f 5.6 (1 stop better)... or the 400mm f8 (200mm f4)
First tries is that it is lighter (700g for the 2.8) but same length. focusing is lighter image quality looks the same but it does not have the 2.8 opening nor the 8 blades bokey. Given the difference in price (I paid over 250-300€ for the 2.8) f 4 was probably the better choice.
Been making quite a bit of small birds picture (blue tits,...) in the garden with the 200mm 2.8 and 300s (*2) which gives me a 400 mm f 5.6 (eq 600mm FFeq) with a compact combined camera lenses weighing just above 1 kg.
Not sure which is quite more comfortable: the 500mm f8 mirror (lighter shorter focusing ring large diameter) or the 400mm f 5.6 (1 stop better)... or the 400mm f8 (200mm f4)