| View previous topic :: View next topic |
| Author |
Message |
thomasb
Joined: 18 Jan 2010
Posts: 51
Location: Glasgow
|
 Posted: Thu Jan 21, 2010 9:05 pm Post subject: Paragon 1:8 500mm |
 |
|
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. |
|
| Back to top |
|
 |
fatdeeman
Joined: 13 Jun 2009
Posts: 780
Location: UK
|
| Posted: Thu Jan 21, 2010 9:24 pm Post subject: |
|
|
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
|
|
| Back to top |
|
|
thomasb
Joined: 18 Jan 2010
Posts: 51
Location: Glasgow
|
| Posted: Thu Jan 21, 2010 9:34 pm Post subject: |
|
|
thomasb wrote:
thanks, thats what I thought. |
|
| Back to top |
|
|
eeyore_nl
Joined: 09 Nov 2008
Posts: 837
Location: Netherlands
|
| Posted: Thu Jan 21, 2010 9:36 pm Post subject: |
|
|
eeyore_nl wrote:
That must be a pretty difficult lens to focus!
_________________
Fujifilm X-Pro2 / Fujifilm X-T1 / some Sonnar & Takumar lenses |
|
| Back to top |
|
|
thomasb
Joined: 18 Jan 2010
Posts: 51
Location: Glasgow
|
| Posted: Thu Jan 21, 2010 11:04 pm Post subject: |
|
|
thomasb wrote:
i,ll be able to answer that tomorrow.  |
|
| Back to top |
|
|
thomasb
Joined: 18 Jan 2010
Posts: 51
Location: Glasgow
|
| Posted: Fri Jan 22, 2010 2:36 pm Post subject: |
|
|
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 |
|
| Back to top |
|
|
thomasb
Joined: 18 Jan 2010
Posts: 51
Location: Glasgow
|
| Posted: Fri Jan 22, 2010 2:38 pm Post subject: |
|
|
thomasb wrote:
and a pidgeon on a neighbouring roof
 |
|
| Back to top |
|
|
Helios
Joined: 05 Jan 2008
Posts: 537
Location: East of France
|
| Posted: Fri Jan 22, 2010 2:38 pm Post subject: |
|
|
Helios wrote:
Yet another "Wundertüte" !  |
|
| Back to top |
|
|
eeyore_nl
Joined: 09 Nov 2008
Posts: 837
Location: Netherlands
|
| Posted: Fri Jan 22, 2010 3:25 pm Post subject: |
|
|
eeyore_nl wrote:
| thomasb wrote: |
and a pidgeon on a neighbouring roof
|
That's pretty good!
_________________
Fujifilm X-Pro2 / Fujifilm X-T1 / some Sonnar & Takumar lenses |
|
| Back to top |
|
|
Case from Holland
Joined: 26 May 2007
Posts: 26
Location: Amsterdam, the Netherlands
|
| Posted: Sat Jan 23, 2010 10:49 pm Post subject: |
|
|
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..... |
|
| Back to top |
|
|
ManualFocus-G
Joined: 29 Dec 2008
Posts: 6622
Location: United Kingdom
Expire: 2014-11-24
|
| Posted: Sun Jan 24, 2010 12:52 am Post subject: |
|
|
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 |
|
| Back to top |
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Search
Memberlist
Register
Profile
Log in to check your private messages
Log in
