CONTAX CLUB Carl Zeiss 討論區

我用康泰時AX或者645用自動對焦時發現相機內的合焦LED表示已經對好但從裂像顯示屏上的影像仍差一點點(這情況一直都有,但日本KYOCERA檢查後說我的相機一切正常對焦亦無問題)想請教各位師兄有以上經驗嗎?各位會以相機為準還是用自動對焦後再把裂像對焦用手微調至裂像對焦屏內的影像合焦為止?
各位師兄可否指點一下小弟?
*以上所述都是拍攝物體為建築物;有腳架;AX(28mm F2.8;50mm F1.4; 85mm F1.4; 28-70mm; 35-135mm; 200mm(Ger), 645(80mm F2; 35mm)

應該係有關自動對焦的疑問

[quote="Ba Bi"]我用康泰時AX或者645用自動對焦時發現相機內的合焦LED表示已經對好但從裂像顯示屏上的影像仍差一點點(這情況一直都有,但日本KYOCERA檢查後說我的相機一切正常對焦亦無問題)想請教各位師兄有以上經驗嗎?各位會以相機為準還是用自動對焦後再把裂像對焦用手微調至裂像對焦屏內的影像合焦為止?
各位師兄可否指點一下小弟?
*以上所述都是拍攝物體為建築物;有腳架;AX(28mm F2.8;50mm F1.4; 85mm F1.4; 28-70mm; 35-135mm; 200mm(Ger), 645(80mm F2; 35mm)[/quote]

During the days when Contax still manufacturing and marketing, my friend has bought a 645 and noting this issues on the day he bought a split-image screen, then, he has replaced four and get one with all things get matched. Photos-wise speaking, the former ones are really not perfectly focus when enlargment is needed. It depends on whether focus could cover it's depth of field or not. That said, you should rely on manual focus rather than its AF.
My AX have this problem before and thus sent to Japan request for the USM focus mechanism replacement. Now, it is perfectly run. Of course, the full cost should be bourned by me. (My reason is of course due to "picky)

Thank you, regarding your value information it seems if the picture from view finder not 100% match focus it is better I use manual to trim focus is much better am I right ?

我部N1換o左裂像對焦屏後,都有呢個問題,不過d相晒出o黎無問題,所以冇理佢.

Kin C-hing, my eyes not very good la, I have ”老花EYES” thus I don't want all of my photos have "foggy feel"
Perhaps I try to take some photos (use AF and manual, same distance; same subject; same f) then enlarge them to check with one is much better.

[quote="Ba Bi"]
Thank you, regarding your value information it seems if the picture from view finder not 100% match focus it is better I use manual to trim focus is much better am I right ?[/quote]

Yes, however, you should make sure that your eyepiece diopter is accurately adjusted as well and your eye is straight to viewfinder. Otherwise, your adjustment may not be accurate.

Normally, its autofocus is stop within the tolerance level and close to the accurate, the depth of field will cover it. (Don't be unhappy)

However, if you like me using very large aperture very often or picky or you prefer do some enlargment. That is another story.

Oh, I see~ it is say basically the AF is accurate but if users want to do enlarge the photos to print out it is better to trim the focus by manual. Now I knew ”老花EYES” is total inconvenience for me

Some photographers insist on ground-glass focusing, dismissing split-image as inaccurate.