twoeye wrote:
I have never tested the performance of my FE55 until now, but two weeks ago I noticed that infinity shots at the wider aperture were noticeably unsharp on the left side. Some testing shows that the plane of focus is tilted, focused at infinity the image is in focus at about 20m on the left side while it is sharp at infinity in the centre and right side. (My FE 35 is fine.)
Sending it off for adjustment/ replacement, hoping Sonys turnaround is faster now than when my RX1 was serviced.
.
.
.
Short update: My FE 55 was replaced by a second copy which had the exact same issue, it is going back for replacement again. No other lenses shows this tilted plane of focus on my A7r.
Final update: My second decentered copy was, according to Sony, within specifcations and they claimed that \" It is true that this lens model have tendency to be a bit less sharp at left side, this is visible on all lenses. \" (!)
Luckily my retailer, Fotovideo in Oslo, stood up for me and accepted a return and full refund.
Some tests/ samples:
Decentering test shot done by Sony´s Norwegian Service Partner on an A6000:
(Decentering tests of this lens should, according to Sony, be done on an Aps-C A6000, not an A7 (!))
twoeye wrote: twoeye wrote:
I have never tested the performance of my FE55 until now, but two weeks ago I noticed that infinity shots at the wider aperture were noticeably unsharp on the left side. Some testing shows that the plane of focus is tilted, focused at infinity the image is in focus at about 20m on the left side while it is sharp at infinity in the centre and right side. (My FE 35 is fine.)
Sending it off for adjustment/ replacement, hoping Sonys turnaround is faster now than when my RX1 was serviced.
Short update: My FE 55 was replaced by a second copy which had the exact same issue, it is going back for replacement again. No other lenses shows this tilted plane of focus on my A7r.
Final update: My second decentered copy was, according to Sony, within specifcations and they claimed that \" It is true that this lens model have tendency to be a bit less sharp at left side, this is visible on all lenses. \" (!)
Luckily my retailer, Fotovideo in Oslo, stood up for me and accepted a return and full refund.
Some tests/ samples:
Decentering test shot done by Sony´s Norwegian Service Partner on an A6000:
(Decentering tests of this lens should, according to Sony, be done on an Aps-C A6000, not an A7 (!))
twoeye wrote: twoeye wrote:
I have never tested the performance of my FE55 until now, but two weeks ago I noticed that infinity shots at the wider aperture were noticeably unsharp on the left side. Some testing shows that the plane of focus is tilted, focused at infinity the image is in focus at about 20m on the left side while it is sharp at infinity in the centre and right side. (My FE 35 is fine.)
Sending it off for adjustment/ replacement, hoping Sonys turnaround is faster now than when my RX1 was serviced.
Short update: My FE 55 was replaced by a second copy which had the exact same issue, it is going back for replacement again. No other lenses shows this tilted plane of focus on my A7r.
Final update: My second decentered copy was, according to Sony, within specifcations and they claimed that \" It is true that this lens model have tendency to be a bit less sharp at left side, this is visible on all lenses. \" (!)
Luckily my retailer, Fotovideo, in Oslo stood up for me and accepted a return and full refund.
Some tests/ samples:
Decentering test shot done by Sony´s Norwegian Service Partner on an A6000:
(Decentering tests of this lens should, according to Sony, be done on an Aps-C A6000, not an A7 (!))
Tilted plane of focus (marked in black by me):
Jan 07, 2015 at 07:00 AM
Previous versions of twoeye's message #12784701 « Issue with the Sony Zeiss 55/1.8 FE or A7 »
