Den 19.05.2018 03:31, skrev Subash Jeyan:
thanks Jostein, that's reassuring. i suppose there is a lot of individual copy variation...i am still exploring my options for a tele...
Funny you should say that. I brought the FA*400/5.6 to USA in 2004 (for a roadtrip involving the Grandfather Mountain Nature Photo Week-end), and managed to drop it from two meters height onto asphalt. The impact bent the whole optical tube and broke the lens shade, but left the glass intact. When returned from repair, it had been collimated and calibrated properly and was noticeably sharper than before. Repairman told me the factory specifications, in his words, "had some slack".
The calibration/collimation was a small part of the work and would have been worth the while even for a lens within specification.
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