[Blue]

Whooooaaaa.... ok ok... sorry for late repy.

It was shot during late afternoon near evening... say the sun is at my front at 30 degree up from the ground.
I was asking if it was shot without the hood would have caused the CA and fringing. And if putting up a hood would actually reduced it or eliminate it.
Now I am using an APSC camera body coupled with this sweet baby [50mm f1,2]. I understand that the hood was originally for 35mm film cameras. When couples with a dslr at 1.5x magnification APSC, the hood can be extended as it utilizes the centre of the lens only [which is also the highest MTF i assume]...

Guys, help me out if application of the hood will eliminate the CA and fringing [purple]. Anyone who owns this baby please do try it out and let me know... I am like so wantthis lens badly... but if its a bad copy no point having it... [crying bucket loads]...

THanks

Can you post the image along with exif data?

[vonBaloney]

I don't think a hood will help with CA/fringing, but it will help with flare and contrast. On digital, a UV filter can only hurt your images because the sensor is not sensitive to UV light. If it *apparently* helps, it is probably also reducing resolution/contrast and that's why. It is a fact of life that many of the best and sharpest fast lenses will suffer PF at the widest apertures under high-contrast conditions. The technology for dealing with this in post is getting better every year, however.

[choong_dc]

Hi Matt and Blue,

I have not the data nor the images with as I teste the shots with the owners camera... yeah I know... [I suXX]...
I am trying to ask him for an upload to my email account.

Blue, you have an A50mm f1.2... you tried snapping a hood on? What is the effect like?

[Blue]

Hi Matt and Blue,

I have not the data nor the images with as I teste the shots with the owners camera... yeah I know... [I suXX]...
I am trying to ask him for an upload to my email account.

Blue, you have an A50mm f1.2... you tried snapping a hood on? What is the effect like?

I use Nikon HS7 hood on it in situations where I am concerned about flare.

[Kerrowdown]

I use Nikon HS7 hood on it

Is that good for both FF and crop? thanks.

[scratchpaddy]

I have the A version of this lens, which I believe is optically the same as yours. It can produce massive amounts of purple fringing at f/1.2, and it's not very sharp either. That's normal, and I've never used it without a hood. Everything improves drastically at f/1.4. That's why I use it: its performance is exceptional even at f/1.4, and f/1.2 is still there if you're feeling artsy.

As others have said, a hood will improve contrast, but it won't help fringing or CA.

[Blue]

Is that good for both FF and crop? thanks.

I have it optimized for full frame since I shoot film still. It also works on the aps-c digital but could get away with a slightly longer hood.

[Kerrowdown]

I have it optimized for full frame

Thanks for that quick reply, I'm still using the original Pentax version for designed for the 1:1.2-1.4 50 mm & 1:1.8 55 mm with my SMC Pentax-A 50mm F1.2.

It's only about 20 mm deep & 70 mm dia approx, a quick Google on the Nikon HS7 shows it's a lot deeper at 39 mm & 77 mm dia, time to order one up.

[choong_dc]

So the CA and Fringing are normal at f1.2. Can Photoshop eliminate/correct them all??? I am 70% sure going to get this lens for my birthday!!! BOOYAH!!!!!!