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10-12-2013, 07:56 AM   #1
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Comparing HD coating with old SMC on DA 21 ltd

Update: I found that something is wrong with my 21mm lens. so ignore this thread.

Today I had a chance to test drive new HD limited lenses in Kuala Lumpur Photography Festival.
Since I only own the SMC-DA 21mm ltd, I made a simple comparison between them on flare resistance wide open, because I found that the DA 21ltd is too much flare prone wide open!
and Guess what!? the new coating is really something!
check the shots here:

The old SMC coating:



The new HD coating:




Last edited by mtux; 10-12-2013 at 08:43 AM. Reason: more info
10-12-2013, 07:58 AM   #2
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Impressive!
10-12-2013, 08:15 AM   #3
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I still think either your 21 is dirty or defective. Maybe one of the inner elements got dirty during manufacture or something. From what I've seen of the 21, it's usually better than yours is. That's not to say the new one isn't better, just I don't think yours is as good as the norm for a 21.
10-12-2013, 08:21 AM   #4
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QuoteOriginally posted by Kozlok Quote
I still think either your 21 is dirty or defective. Maybe one of the inner elements got dirty during manufacture or something. From what I've seen of the 21, it's usually better than yours is. That's not to say the new one isn't better, just I don't think yours is as good as the norm for a 21.
It wasn't dirty for sure (the outer elements that I can clean) and I detached the HD one from K3, which other people have tried before me, so that wasn't very clean either.
But thanks for that, How can I check that!? should I go for guarantee and tell them the issue!? or any better idea?

10-12-2013, 08:27 AM   #5
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That looks a lot like poor quality UV filter flare, I've never seen flare like that from an SMC lens or really any multicoated lens.
10-12-2013, 08:41 AM   #6
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QuoteOriginally posted by Kozlok Quote
I still think either your 21 is dirty or defective. Maybe one of the inner elements got dirty during manufacture or something. From what I've seen of the 21, it's usually better than yours is. That's not to say the new one isn't better, just I don't think yours is as good as the norm for a 21.
You are right, I inspected my lens very closely and found something weird inside, I'm stunned how I didn't see it before :/
Thanks for the info.
10-12-2013, 10:55 AM   #7
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That does look great!
10-12-2013, 12:21 PM   #8
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QuoteOriginally posted by mtux Quote
You are right, I inspected my lens very closely and found something weird inside, I'm stunned how I didn't see it before :/
Thanks for the info.
I probably wouldn't have figured out before last weekend either. I've shot extensively with my 15, so I know it well. Last weekend I took a shot that had way too much flare, and I noticed a thin film on my front element. Cleaned it, and back to normal. It looked just like what your 21 is showing. Kind of foggy flare.

10-12-2013, 12:50 PM   #9
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QuoteOriginally posted by mtux Quote
Update: I found that something is wrong with my 21mm lens. so ignore this thread.
I was going to say...

Adam
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10-12-2013, 01:18 PM   #10
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Adam, any idea when you're going to have the new HDs to test?
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