hi guys, i finally decided to get one used 58 1.4. now im confused. Is my copy good?
I post in my flickr a few photos, all shot at 1.4, neutral setting, resized and cropped in lightroom. Could u guys please take a look and tell me, im so confused about the sharpness and CA of this lens at 1.4
Chester87 wrote:
hi guys, i finally decided to get one used 58 1.4. now im confused. Is my copy good?
I post in my flickr a few photos, all shot at 1.4, neutral setting, resized and cropped in lightroom. Could u guys please take a look and tell me, im so confused about the sharpness and CA of this lens at 1.4
Did you already afft? I think you're a little front focusing. Your book shot shows a little purple fringing on the letters of which I think you focused on. Try not to take shots too close, this isn't meant for shots like that at mfd.
Chester87 wrote:
hi guys, i finally decided to get one used 58 1.4. now im confused. Is my copy good?
I post in my flickr a few photos, all shot at 1.4, neutral setting, resized and cropped in lightroom. Could u guys please take a look and tell me, im so confused about the sharpness and CA of this lens at 1.4
It does seem a little soft, but several shots seem to have missed focus as well. Have you tried AF fine-tuning? That is sure to help. Remember that DoF is very thin at f1.4 and moving subject, ie kids, are tough to get in focus even with fast shutter speeds because once you focus they tend to move before you snap the picture, so while your shutter speed will stop the motion, it won't help fix AF inaccuracy.
Chester87 wrote:
hi guys, i finally decided to get one used 58 1.4. now im confused. Is my copy good?
I post in my flickr a few photos, all shot at 1.4, neutral setting, resized and cropped in lightroom. Could u guys please take a look and tell me, im so confused about the sharpness and CA of this lens at 1.4
low325 wrote:
Did you already afft? I think you're a little front focusing. Your book shot shows a little purple fringing on the letters of which I think you focused on. Try not to take shots too close, this isn't meant for shots like that at mfd.
Thanks for your time. As you see, it's not just from the shot of books, but also from the shots of a male kid, u can see the color fringing in his eyes too. is it normal with this lens? I thought it should not.
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chrisfphotog wroteIt does seem a little soft, but several shots seem to have missed focus as well. Have you tried AF fine-tuning? That is sure to help. Remember that DoF is very thin at f1.4 and moving subject, ie kids, are tough to get in focus even with fast shutter speeds because once you focus they tend to move before you snap the picture, so while your shutter speed will stop the motion, it won't help fix AF inaccuracy.
Thanks for your time, i did make AFT, first +5, then +10 and now i have to make it +20. When i do manual focus, it looks identical to AFT at +20, so i'm pretty sure it has to go with my D700 at the value of +20. Anyway, +20 is the maximum value we can do on AFT.
Here are photos with Tripod, Mirror up, Remote Shooting, Neutral Picture Style Setting, subjects are about 1.2 meter from camera. Only resized by Lightroom, no sharpness enhancement at all.
1. Manual Focus
2. AF finetune off
3. AF Fine Tune on (+20)
Here i do compare with my 50 1.8, bot shots at 1.8, they look identical
4. 50 1.8G @ 1.8
5. 58 1.4G @ 1.8
I'm trying to get to try it on different bodies like D800/810/750/DF to see if it still comes out with softness.
The lens i bought is an used one, it has the store's warranty, but from a place like i'm living, it would be troublesome if the lens is a bad copy.
Do the test again with something like a barcode on a box; make sure Chromatic Abberation correction is turned OFF in LR. Seeing chromatic abberation is key to fine tuning an f/1.4 lens. I see it in most of those pictures.
I've said it many times on here:
Green = back focusing
Purple = front focusing
Jason_Brook wrote:
Do the test again with something like a barcode on a box; make sure Chromatic Abberation correction is turned OFF in LR. Seeing chromatic abberation is key to fine tuning an f/1.4 lens. I see it in most of those pictures.
I've said it many times on here:
Green = back focusing
Purple = front focusing
thank you for your advice. i'd do it again. until now, what i do with AFFT is look at how sharpness scale move with AFFT by my eyes.
Do you have any instruction for that?
Chester87 wrote:
thank you for your advice. i'd do it again. until now, what i do with AFFT is look at how sharpness scale move with AFFT by my eyes.
Do you have any instruction for that?
CA is unique by color when it's back or front focused, and in my opinion is the easiest way to fine tune a lens. Obviously CA is tremendously worse on f/1.4 lenses, but it makes it that much easier. Get something extremely high contrast like a barcode label, put it in strong lighting to promote CA. If your test subject has green CA, you're front focusing. If it's purple, you're back focusing. There really is no scientific process/instruction to it. You're just looking to see what color the CA is. If there's none, it's dead on.
This is not my photo, but should help illustrate what's going on
Jason_Brook wrote:
CA is unique by color when it's back or front focused, and in my opinion is the easiest way to fine tune a lens. Obviously CA is tremendously worse on f/1.4 lenses, but it makes it that much easier. Get something extremely high contrast like a barcode label, put it in strong lighting to promote CA. If your test subject has green CA, you're front focusing. If it's purple, you're back focusing. There really is no scientific process/instruction to it. You're just looking to see what color the CA is. If there's none, it's dead on.
Joseph. wrote:
With my 58 1.4G gone, I can now begin the search for the elusive Noct-NIKKOR 58 1.2 AIS! you can catch me over at the MFNG thread....
peace out homies
Thinking about selling my Noct-Nikkor Ai-s (1998 production year, serial number is very high) - near mint condition (papers, boxes, caps, no signs of dust / fungus / scratches etc.).
lichtspieler wrote:
Thinking about selling my Noct-Nikkor Ai-s (1998 production year, serial number is very high) - near mint condition (papers, boxes, caps, no signs of dust / fungus / scratches etc.).
