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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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 Posted: Wed Aug 18, 2010 10:11 am Post subject: Cyclops went walkabout |
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martyn_bannister wrote:
Learnt a few things when I managed to go walkabout with this Russian nightscope lens... (Helios(?) 85mm f1.5)
In bright light, even 1/8000s ISO 100 may not be good enough 
I find getting the focus right VERY difficult
It does flare, but not excessively.
It doesn't seem to be that sharp at long distances.
Despite my mediocre talent, it's still a fun lens though 
http://www.flickr.com/photos/48607572@N04/sets/72157624626899247/
On a Canon 5D?) |
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jacob12_1993
Joined: 20 May 2010
Posts: 58
Location: Stoke-on-Trent, England
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| Posted: Wed Aug 18, 2010 10:44 am Post subject: |
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jacob12_1993 wrote:
Could you use an ND4 to take it down to 1/2000s? that would solve the first problem?
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Nikon D40, Zenit E, Zenit 11, Nikon 50mm F1.8 E, Nikkor H 50mm f2, Nikon 18-55mm F3.6-5.6, Tokina RMC 35mm f2.8, Vivitar 100-300 f5, Industar 50-2, Tamron 80-210 f3.8 103a, Tokina RMC 28-70 f4 |
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Wed Aug 18, 2010 11:06 am Post subject: |
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martyn_bannister wrote:
| jacob12_1993 wrote: |
| Could you use an ND4 to take it down to 1/2000s? that would solve the first problem? |
Yes, that's certainly going to work. Need to get one for really bright sunshine, they are quite inexpensive on ebay. |
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woodrim
Joined: 14 Jan 2010
Posts: 4058
Location: Charleston
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| Posted: Wed Aug 18, 2010 3:29 pm Post subject: |
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woodrim wrote:
Were you using the tin foil at all?
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Woodrim |
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Wed Aug 18, 2010 3:31 pm Post subject: |
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martyn_bannister wrote:
| woodrim wrote: |
| Were you using the tin foil at all? |
Hi Woodrim, no it's too delicate, I was just strolling around with the lens naked, snapping away |
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woodrim
Joined: 14 Jan 2010
Posts: 4058
Location: Charleston
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| Posted: Wed Aug 18, 2010 3:41 pm Post subject: |
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woodrim wrote:
Well then in that case, you did pretty well getting some in excellent focus. There was at least one where I would have thought you "stopped down" a bit. But there were several that I believe are superb examples of the lens' unique characteristics. You seemed to have a good idea of how to use it to advantage, I'm impressed.
Some appear very sharp, although I have done no pixel peeping. I wonder if your comment about distance might be due to going past infinity. I have that problem with several of my adapted lenses.
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Woodrim |
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Wed Aug 18, 2010 3:56 pm Post subject: |
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martyn_bannister wrote:
| woodrim wrote: |
Well then in that case, you did pretty well getting some in excellent focus. There was at least one where I would have thought you "stopped down" a bit. But there were several that I believe are superb examples of the lens' unique characteristics. You seemed to have a good idea of how to use it to advantage, I'm impressed.
Some appear very sharp, although I have done no pixel peeping. I wonder if your comment about distance might be due to going past infinity. I have that problem with several of my adapted lenses. |
It does focus well past infinity, so had to take that into account, but even so, can't seem to get a good inifity picture. Must try harder! |
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Wed Aug 18, 2010 4:33 pm Post subject: |
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martyn_bannister wrote:
| martyn_bannister wrote: |
| woodrim wrote: |
Well then in that case, you did pretty well getting some in excellent focus. There was at least one where I would have thought you "stopped down" a bit. But there were several that I believe are superb examples of the lens' unique characteristics. You seemed to have a good idea of how to use it to advantage, I'm impressed.
Some appear very sharp, although I have done no pixel peeping. I wonder if your comment about distance might be due to going past infinity. I have that problem with several of my adapted lenses. |
It does focus well past infinity, so had to take that into account, but even so, can't seem to get a good inifity picture. Must try harder! |
Well, resting on my windowsill and concentrating ultra hard, I got this shot. A bit weird outside of center! Rather than CA, there seems to be quite a lot of a sort of "glow" around the lighter colours?
Resized to 1024 wide
100% crop center
100% crop right
100% crop left
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Giac
Joined: 01 Feb 2010
Posts: 11
Location: Netherlands
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| Posted: Wed Aug 18, 2010 7:24 pm Post subject: the Glow of the Cyclops |
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Giac wrote:
The glow you mentioned reminds me strongly of the typical glow of the Auto Mamya Sekor 50/1.4, when taking a pic with the lens fully open.
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I use a Nikon D50. a Nikon D300 and a Pentax k20d.
Some MF-Lenses in use: Tamron SP Macro 90/2.8, Opteka Mirror 500/8, Nikkor 50/1.8, Helios-44-2 58/2, Industar 50-2 50/3.5, Super Takumar 50/1.4, Jupiter-9 2/85, Tair-3-PHS 300/4.5, Mamiya Sekor SX 50/2. |
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woodrim
Joined: 14 Jan 2010
Posts: 4058
Location: Charleston
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| Posted: Wed Aug 18, 2010 8:23 pm Post subject: |
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woodrim wrote:
Thats another characteristic of a fast lens wide open. I think it's referred to as ghosting.
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Woodrim |
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