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Legacy Lenses Discuss the use of older lenses, using adapters, from the Olympus OM system, Leica M and R-series, and the millions of others too.

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  #1  
Old 9th January 2016
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Sigma 400mm

It's raining, so I'm inside, behind double glassing (that's not been cleaned this week), a tree is half way between me and the cormorant tree, the light is very poor... Also try to keep in mind that this is an old lens and this is a about a 75% crop from the original image, reduced down to web size...

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Old 9th January 2016
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Re: Sigma 400mm

You clean your windows every week
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Old 9th January 2016
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Re: Sigma 400mm

Quote:
Originally Posted by Phill D View Post
You clean your windows every week
No! A man wiv a lada duz em evry fortnite... Weaint s'posh doun er in esex t avem dun eech week...
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Old 9th January 2016
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Re: Sigma 400mm

I hope you realise that you've halved the resolution and doubled the depth of field by using a legacy lens.
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Old 9th January 2016
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Re: Sigma 400mm

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I hope you realise that you've halved the resolution and doubled the depth of field by using a legacy lens.


Would it make any difference, if I opened the window.
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Old 9th January 2016
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Re: Sigma 400mm

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Originally Posted by Graham_of_Rainham View Post


Would it make any difference, if I opened the window.
Maybe just take the two protective filters off as you're indoors.
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Old 9th January 2016
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Re: Sigma 400mm

Which version of the Sigma 400mm is this?

The 400mm f5.6 APO with 72mm filter thread is a good lens but suffers from hazing of a doublet lens group that is buried deep in the focusing group. I have three of these lenses and they are all the same. They are a pig to get into and the hazing can't be fixed anyway because it is either coating damage or cementation failure.

The older non-APO versions are not supposed to be as good (but i don't have personal experience).

The later 400mm f5.6 Tele-macro with 77mm filter is supposed to be very good and a better lens than the APO, but I have never had one to test as they are a lot less common.

I am not sure how AF versions (Minolta and EOS) with 72mm filter fit into this chronology. Maybe someone can enlighten me?

Mark
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Re: Sigma 400mm

Thanks Mark, I'd forgotten they were an early model when Sigma rewrote the laws of physics. Graham, maybe try fresh batteries in the lens as the image intensifier may not be working.
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Re: Sigma 400mm

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Originally Posted by Mark_R2 View Post
Which version of the Sigma 400mm is this?
It's one of the very old Gun Metal Grey IF versions.

Looking through it, it's exceptionally good, with no sign of haze and very little dust.

The "Purple" CA is very noticeable, which is why I reduced this to B&W

I'm tempted to take it out to our local RSPB site and frighten a few of the cameraflage brigade.

Years ago I sat in a big hide with a friend and we were deliberately talking about the "reach" we had with our Olympus kit. I had the 400mm with a 2x OM TC then the OM to 4/3rds adapter and the EC-14 on a E-3 body. The fun came when I was getting shots of birds that the twitchers with their drainpipes couldn't even see. Even more fun was had when we were discussing (very convincingly) that it was a very rare bird that we had pictures of...
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Last edited by Graham_of_Rainham; 9th January 2016 at 04:47 PM. Reason: auto spellin issue
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Old 9th January 2016
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Re: Sigma 400mm

Time for a paper 1.2f 1200mm lightweight lens with stabilizer and hover facility?
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Old 9th January 2016
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Re: Sigma 400mm

How about 1000mm F10?

http://forum.mflenses.com/soviet-mto...10-t73872.html
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Re: Sigma 400mm

Mark great shots for hand held, which gym do you use?
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Old 9th January 2016
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Re: Sigma 400mm

Oh, that's not me. I wish it were - my hands are like jelly.
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Old 10th January 2016
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Re: Sigma 400mm

What a difference a day makes:

As it wasn't raining the window cleaner came today...

Roughly the same distance, but nothing in the way this time. The purple CA is still very evident when the ORF is viewed at 100%, but with a quick pass through DxO Optics Pro (not that there's a profile for the lens) to "clean up" the contrast, etc.. Good light makes all the difference, but the limitations really do show that it's no match for the high quality lenses that are currently available.

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Old 10th January 2016
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Re: Sigma 400mm

It wasn't much of a match for some of the lenses available when it was current. I borrowed one hoping it would match my OM 300mm but it wasn't even close. The appeal to me was the IF.
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