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thomasb
Joined: 18 Jan 2010 Posts: 51 Location: Glasgow
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Posted: Thu Jan 21, 2010 9:05 pm Post subject: Paragon 1:8 500mm |
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thomasb wrote:
Hi as well as the usual markings on the barrel, ie feet , mtrs and f no:s, this lens has O<->C. if I move it the blades open and close, what is this setting for. |
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fatdeeman
Joined: 13 Jun 2009 Posts: 780 Location: UK
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Posted: Thu Jan 21, 2010 9:24 pm Post subject: |
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fatdeeman wrote:
It's a preset lens, one ring you set to your desired aperture then the o-c ring opens and closes the aperture blades but only as far as you have chosen with the f stop ring so you can focus with the lens wide open and then close the aperture down to your desired setting without moving your eye away from the viewfinder. _________________ - Dave
www.lensporn.net
www.flickr.com/photos/fatdeeman/
DSLR: Canon EOS 60D, Samsung GX-1S (Pentax *ist DS2)
Mirrorless: Panasonic DMC-G1, Sony NEX-5N
Compact: Canon PowerShot G3
Lenses:
Wide: Tokina RMC 28mm F/2.8, Tamron Adaptall 2 28mm F/2.5, Sun Optical 28mm F/2.5, Super paragon 28mm F/2.8, Sigma filtermatic 24mm F/2.8, Fujinon 35mm F/2.8, Sun Optical 35mm F/2.8
Standard: Industar 50-2, Helios 44-2, Helios 44M, Helios 44M-3, Pentax-M 50mm F/1.4, Pentax-M 50mm F/1.7, Pentax-M 50mm F/2, Ricoh 50mm F/1.7, Chinon 50mm F/1.7
Tele: Pentacon 135mm F/2.8, Pentacon 200mm F/3.5, Optomax 200mm f/3.5, Sun Optical 135mm F/3.5, Soligor 350mm F/5.6
Zoom: Tokina 28-70mm f/3.5-4.5 SZ-X270 SD, Sigma Zoom Pi 35-200mm F4-5.6, Sun Optical 28-80mm F/3.5-4.5, Sunagor 80-205mm F/3.8, Tokina RMC 80-200mm F/4, Vivitar 70-150mm F/3.8, Tamron 95-205mm F/6.3, Tamron Adaptall 28-200mm F/3.8-5.6 LD Aspherical, Tokina RMC 70-210mm F/3.5
Mirror: Falcon (Samyang) 800mm F/8, MTO-11CA 1000mm F/10, Tamron Adaptall 2 500mm F/8
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thomasb
Joined: 18 Jan 2010 Posts: 51 Location: Glasgow
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Posted: Thu Jan 21, 2010 9:34 pm Post subject: |
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thomasb wrote:
thanks, thats what I thought. |
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eeyore_nl
Joined: 09 Nov 2008 Posts: 837 Location: Netherlands
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Posted: Thu Jan 21, 2010 9:36 pm Post subject: |
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eeyore_nl wrote:
That must be a pretty difficult lens to focus! _________________ Fujifilm X-Pro2 / Fujifilm X-T1 / some Sonnar & Takumar lenses |
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thomasb
Joined: 18 Jan 2010 Posts: 51 Location: Glasgow
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Posted: Thu Jan 21, 2010 11:04 pm Post subject: |
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thomasb wrote:
i,ll be able to answer that tomorrow. |
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thomasb
Joined: 18 Jan 2010 Posts: 51 Location: Glasgow
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Posted: Fri Jan 22, 2010 2:36 pm Post subject: |
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thomasb wrote:
wasn,t too bad, heres a photo of the top of a fir tree. (even got the insect above it)
Last edited by thomasb on Fri Jan 22, 2010 2:38 pm; edited 1 time in total |
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thomasb
Joined: 18 Jan 2010 Posts: 51 Location: Glasgow
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Posted: Fri Jan 22, 2010 2:38 pm Post subject: |
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thomasb wrote:
and a pidgeon on a neighbouring roof
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Helios
Joined: 05 Jan 2008 Posts: 537 Location: East of France
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Posted: Fri Jan 22, 2010 2:38 pm Post subject: |
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Helios wrote:
Yet another "Wundertüte" ! |
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eeyore_nl
Joined: 09 Nov 2008 Posts: 837 Location: Netherlands
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Posted: Fri Jan 22, 2010 3:25 pm Post subject: |
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eeyore_nl wrote:
thomasb wrote: |
and a pidgeon on a neighbouring roof
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That's pretty good! _________________ Fujifilm X-Pro2 / Fujifilm X-T1 / some Sonnar & Takumar lenses |
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Case from Holland
Joined: 26 May 2007 Posts: 26 Location: Amsterdam, the Netherlands
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Posted: Sat Jan 23, 2010 10:49 pm Post subject: |
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Case from Holland wrote:
I must say i'm not very impressed by that pidgeon.
My Russian 3M-5A 500mm F8 mirror lens does a far better job , IF i succeed in proper focussing..... |
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ManualFocus-G
Joined: 29 Dec 2008 Posts: 6622 Location: United Kingdom
Expire: 2014-11-24
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Posted: Sun Jan 24, 2010 12:52 am Post subject: |
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ManualFocus-G wrote:
Well done for getting a focused shot at f8 at a lens that long! I've still not managed it with my Tammie SP 500/8! The purple fringing can be removed easily in pp and a bit of sharpening may help as well, but overall good work! _________________ Graham - Moderator
Shooter of choice: Fujifilm X-T20 with M42, PB and C/Y lenses
See my Flickr photos at http://www.flickr.com/photos/manualfocus-g |
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