[blatant bragging] I have it, it's HERE! Holy Trinity is complete!!!

OMG.....

You know people always say..."a lens is sharpest when stopped down a few stops" ???

I don't think it applies here, at least I wouldn't be happy if it applies to any of the L, in actual fact, I wouldn't be happy if it happens to any prime lens and this lens does not disappoint!

Taken today, f/1.2 (shot through the double glazed windows in Starbucks)




@ 100%

 
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Look at all the CA, the lens is clearly defective. Ill take it off your hand for £10 to save you binning it if you want.
 
That CA is a pain, a feature of modern primes it seems though, the manufacturers seem to have decided 'it can be software corrected' and accepted it. Nikon didn't even bother to put any ED glass in the 35/1.4...interesting decision. It bugs me anyway.
 
Gaffer said:
That CA is because Ray was too lazy to find a coffee shop with optically perfect glass in their front window.

Andrew
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Actually I think it is the lens, there's numerous examples online of the CA it exhibits wide open, notable as it seems to be worse than the old 85 L and the 85/1.8. Not a criticism, just a statement that manufacturers do seem to view fairly obvious CA as being acceptable on their top end primes.
 
I was sitting where the girl on the right is sitting in this photo




The only way we can find out is if I go back and take a similar shot again without a filter and outside and hope for the same over cast sky.

But then how can you rule out that double glazed window completely ? You find people go on day and night about the bad side effects of using filters about degrading IQ, losing sharpness, adding CA. But you are saying a double glazed window that is made with a tolerance that is WAYYYY different than an optical glass has ZERO effect on IQ? One which I shot through at an angle.

I am so confused...

I am not saying the lens does not have CA, all lens has some levels of CA, just do not understand how you can put ALL that to the lens.
 
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Raymond Lin said:
I am not saying the lens does not have CA, all lens has some levels of CA, just do not understand how you can put ALL that to the lens.
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It's assumption but the CA is consistent with other samples of the same lens and I've never got CA like that from simply shooting through window glass on it's own (which is optically simple, so unlikely to produce it like that under normal circumstances).

It's a lovely lens indeed and as you say, every lens has a degree of CA, I was merely commenting on the trend for manufacturers to accept the presence of CA in high end glass. Yeah it's easy to remove later (actually if you shoot jpeg then Nikon do it in camera, I presume Canon do too) but it being acceptable to them in a £1500+ prime just seems odd to me, that's all I was commenting on. It affects all the new fast primes today seemingly and doesn't detract from the lens being really quite something overall.
 
Raymond Lin said:
But then how can you rule out that double glazed window completely ?
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Ray, I'm sure we'll meet up one day. When we do, remind me to let you have a look through the 800 and see how poor the optical stability of the damned air is...

It doesn't take much warmth or much distance to ruin my day...

Andrew
 
Gaffer said:
Ray, I'm sure we'll meet up one day. When we do, remind me to let you have a look through the 800 and see how poor the optical stability of the damned air is...

It doesn't take much warmth or much distance to ruin my day...

Andrew
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I will and I can imagine how that can happen, you can see it with your naked eye when it gets to about 30c on the tarmac.
 
Gaffer said:
Ray, I'm sure we'll meet up one day. When we do, remind me to let you have a look through the 800 and see how poor the optical stability of the damned air is...

It doesn't take much warmth or much distance to ruin my day...

Andrew
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I remember you posting a photo of that a long time ago. Crazy stuff.
 
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