lsman1

Is it me or do you think at the wide end, the 18-55IS kits lens is actually a bit better?

lsman1

For the middle range... let's "compare" something differently... you may say its not apple to apple.. but.. lens softness at ends of zoom... but how about max aperture at middle of zoom? and what about 50mm1.8 at f2.8?

(A) 24mm 1/50s f2.8
(B) 28mm 1/25s f4.0
(C) 50mm 1/50s f2.8

----------
Center
(A)-

(B)-

(C)-

----------------------------------
Left
(A)-

(B)-

(C)-

-------------------------------------------------------------
Right
(A)-

(B)-

(C)


-----------------------


again,... is it me (too high expectation? wrong approach?) or the f2.8 at middle zoom still look bad..
or it should be that bad?

[ 本帖最後由 lsman1 於 2008-10-9 13:00 編輯 ]

inzite

possibly too high expectation from a prosumer lens like tamron. :P u have to see my 24-70 crops :P

lsman1

Last set...

(A) @35mm 1/50s f2.8
Center...still ok..


Left

horrible...
---------------------
Right

...surprise... better than left side....

lsman1

原帖由 inzite 於 2008-10-9 12:58 發表
possibly too high expectation from a prosumer lens like tamron. :P u have to see my 24-70 crops :P

Any A16 user input...?

Thanks.

Yoda

No surprise, very few lenses can be at its best wide open.

Even my 400/2.8 needs f4 to be really sharp.  The only lenses I would not hesitate to use wide open is the 500/4 VR and ZP 85/1.4.

The Noct also needs stepping down to f1.4 to get maximum sharpness.

lsman1

If kit lens can do what the A16 can do, while the f2.8 is a waste... why do I need to pay double for it...



@f8 they are close enough (A16 a bit better if you will)


and yeah, prime lens are just plain "sharper" in those area.

[ 本帖最後由 lsman1 於 2008-10-9 21:15 編輯 ]

lsman1

I think I need to take it outside and work it a bit...

Let see what "real life" pictures it will be at f4... (with better lighting)

http://photography-on-the.net/forum/showthread.php?t=209580

Ch!sE

原帖由 lsman1 於 2008-10-9 22:00 發表
I think I need to take it outside and work it a bit...

Let see what "real life" pictures it will be at f4... (with better lighting)

http://photography-on-the.net/forum/showthread.php?t=209580

我係用家之一
不過我通常我都唔會全開2.8
返一下就已經係靚好多
影風景, 真係收到F8以上囉
同埋我覺得無乜一支鏡全開光圈會sharp得交關...
有需要不如上鏡皇吧啦

新遺失戰艦

原帖由 Ch!sE 於 10-10-2008 00:19 發表

我係用家之一
不過我通常我都唔會全開2.8
返一下就已經係靚好多
影風景, 真係收到F8以上囉
同埋我覺得無乜一支鏡全開光圈會sharp得交關...
有需要不如上鏡皇吧啦

要光圈盡開, 而又sharp, 只有鏡王級既定焦先做得到