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trifox
Joined: 14 May 2008
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Location: UK
Expire: 2014-05-29
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 Posted: Mon Aug 02, 2010 10:43 pm Post subject: Matches...Why? |
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trifox wrote:
... some small quiz -- but VERY short.
Not too much mystery..
First of all ... I need a couple of matches. Why?
a - I need to clean my sensor on 5D Mark II
b - I need to clean the rear glass on my Distagon 2.8/21
c - I need to break them..
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Last edited by trifox on Mon Aug 02, 2010 11:12 pm; edited 1 time in total |
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trifox
Joined: 14 May 2008
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| Posted: Mon Aug 02, 2010 10:54 pm Post subject: |
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trifox wrote:
OK -
'C' is the correct answer -- I need to break them.
But why do I need to break them? 
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hexi
Joined: 01 Jul 2009
Posts: 1631
Location: France
Expire: 2011-11-18
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| Posted: Mon Aug 02, 2010 11:00 pm Post subject: |
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hexi wrote:
I know ! to finally have a better clean of your 5D2 sensor.
it was easy 
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Happy owner and user of :
SLR's > Contax Aria - RX
DSLR > Canon 5D
Lenses : C/Y Planar 1.4/50 - Distagon 2.8/35 - Planar 1.4/85
http://www.flickr.com/photos/sonnar85 |
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trifox
Joined: 14 May 2008
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| Posted: Mon Aug 02, 2010 11:05 pm Post subject: |
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trifox wrote:
Dear Simon - you were very very close but NOT!
the right answer is:
I need to block the MIRROR
ok -- why?
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trifox
Joined: 14 May 2008
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| Posted: Mon Aug 02, 2010 11:15 pm Post subject: |
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trifox wrote:
....because of this ....
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visualopsins
Joined: 05 Mar 2009
Posts: 10956
Location: California
Expire: 2025-04-11
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| Posted: Mon Aug 02, 2010 11:28 pm Post subject: |
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visualopsins wrote:
 very 
Clever posts & clever solution Stan! Bravo! Anxiously awaiting phenomenal results from this lens.
Thank you so much! I think I shall try this with my 3.5/24 S-M-C Takumar which I've been unable to use on 5D. (no way do I expect results the APO should give)
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☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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trifox
Joined: 14 May 2008
Posts: 3614
Location: UK
Expire: 2014-05-29
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| Posted: Tue Aug 03, 2010 5:49 am Post subject: |
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trifox wrote:
thanks !
Well, bright idea is one thing but the reality is slightly different, of course!
I knew that this lens is soooooo deep in the camera body and the result is quite huge vigneting and magenta hue shift over at corners on 5D MkII.
I have seen some samples with Leica M version on Leica M8 (which is not FF sensor) and the magenta hue shift is still there.
Very interesting effect but I am not sure if this is definitely not professional solution.
BUT - the lens itself has is TACKLE sharp straight from the initial aperture and you can not see any CA.
Finally - the DOF is MASSIVE and well-corrected distortion of perspective is simply huge benefit.
Samples coming soon...
tf
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poilu
Joined: 26 Aug 2007
Posts: 10472
Location: Greece
Expire: 2019-08-29
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| Posted: Tue Aug 03, 2010 6:58 am Post subject: |
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poilu wrote:
wow! legendary lens on the 5D
digital has still a lot of problem vs film
huge vigneting, color shift, CA magnified by microlenses who receive only straight light
on the Leica, most of correction is made in software
waiting for samples!
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trifox
Joined: 14 May 2008
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| Posted: Tue Aug 03, 2010 8:26 am Post subject: |
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trifox wrote:
poilu - the lens is amazing - poor digital
but CA is ZERO even on 5D MkII sensor ..
Great news at least!
tf
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CarbonR
Joined: 31 Dec 2008
Posts: 1969
Location: Clermont-Ferrand, France
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| Posted: Tue Aug 03, 2010 9:56 am Post subject: |
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CarbonR wrote:
Welcome into the 15mm world !
But mine is designed for use on SLR 
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Cameras : Canon 5D, Pentax K100D, Pentax 6x7, Spotmatic
Lenses : 15mm to 1000mm (24x36)
My websites : [FR & ENG]Takumar - the eyes of the Spotmatic : info about all Takumar lenses // Kogaku - My photo site
I am selling : Takumar lenses and rare Pentax bodies, pm me if you're interested in something [MFLenses feed-back]
Information on Takumar lenses with samples :
Wide angle : Takumar 15/3.5 15mm, Takumar 17/4 17mm, Takumar 18/11 18mm, Takumar 20/4.5 20mm, Takumar 24/3.5 24mm, Takumar 28/3.5 V1 28mm, Takumar 28/3.5 V2 28mm, Takumar 35/2 V1 35mm, Takumar 35/2 V2 35mm, Takumar 35/2.3 35mm, Takumar 35/3.5 35mm, Takumar 35/4 35mm
Standard : Takumar 50/1.4 V1 50mm, Takumar 50/1.4 V2 50mm, Takumar 50/3.5 50mm, Takumar 50/4 50mm, Takumar 55/2 55/1.8 55mm, Takumar 55/2.2 V1 55mm, Takumar 55/2.2 V2 55mm, Takumar 58/2 58mm, Takumar 58/2.4 58mm
Short tele : Takumar 83/1.9 83mm, Takumar 85/1.8 85/1.9 85mm, Takumar 85/1.8 85mm, Takumar 100/2 100mm, Takumar 100/3.5 100mm, Takumar 100/4 100mm, Takumar 105/2.8 V1 105mm, Takumar 105/2.8 V2 105mm, Takumar 120/2.8 120mm
Telephoto : Takumar 135/2.5 V1 135mm, Takumar 135/2.5 V2 135mm, Takumar 135/3.5 V1 135mm, Takumar 135/3.5 V2 135mm, Takumar 150/4 V1 150mm, Takumar 150/4 V2 150mm
Long tele : Takumar 200/3.5 200mm, Takumar 200/4 200mm, Takumar 200/5.6 200mm, Takumar 300/4 V1 300mm, Takumar 300/4 V2 300mm, Takumar 300/4 V3 300mm, Takumar 300/6.3 300mm, Takumar 400/5.6 400mm, Takumar 500/4.5 500mm, Takumar 500/5 500mm, Takumar 1000/8 V1 1000mm, Takumar 1000/8 V2 1000mm
Zoom : Zoom-Takumar 45~125/4 , Zoom-Takumar 70~150/4.5 , Zoom-Takumar 85~210/4.5 , Zoom-Takumar 135~600/6.7
Achromatic : Ultra-Achromatic-Takumar 85/4.5 , Ultra-Achromatic-Takumar 300/5.6 300mm |
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sichko
Joined: 20 Jun 2008
Posts: 2475
Location: South West UK
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| Posted: Tue Aug 03, 2010 10:06 am Post subject: |
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sichko wrote:
| trifox wrote: |
... well-corrected distortion of perspective is simply huge benefit.
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I don't understand. Isn't perspective distortion inevitable for any lens and particularly obvious for a wide angle ? How does the Heliar correct it ?
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themoleman342
Joined: 21 Oct 2007
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Location: East Coast (CT), U.S.A.
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| Posted: Tue Aug 03, 2010 2:21 pm Post subject: |
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themoleman342 wrote:
Good thing the mirror and shutter appear to be independent of one another. If I tried that on my zenit it would break the matches! |
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Krisgage
Joined: 16 Mar 2009
Posts: 681
Location: Singapore
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| Posted: Fri Aug 06, 2010 6:47 am Post subject: |
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Krisgage wrote:
Hi , can Nikon D90 do this too ?
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trifox
Joined: 14 May 2008
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| Posted: Fri Aug 06, 2010 8:28 pm Post subject: |
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trifox wrote:
yes - I don't know Nikon D90 but I think there shouldn't be any problem ...
The lens has native Nikon mount ..
tf
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martinsmith99
Joined: 31 Aug 2008
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| Posted: Fri Aug 06, 2010 9:27 pm Post subject: |
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martinsmith99 wrote:
| sichko wrote: |
| trifox wrote: |
... well-corrected distortion of perspective is simply huge benefit.
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I don't understand. Isn't perspective distortion inevitable for any lens and particularly obvious for a wide angle ? How does the Heliar correct it ? |
Indeeed. Perspective distortion is just that and not a fault of the lens.
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trifox
Joined: 14 May 2008
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| Posted: Fri Aug 06, 2010 9:49 pm Post subject: |
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trifox wrote:
| martinsmith99 wrote: |
| sichko wrote: |
| trifox wrote: |
... well-corrected distortion of perspective is simply huge benefit.
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I don't understand. Isn't perspective distortion inevitable for any lens and particularly obvious for a wide angle ? How does the Heliar correct it ? |
Indeeed. Perspective distortion is just that and not a fault of the lens. |
So, Martin, do you see the perspective distortion as a benefit then?
I mean barrel or pincushion distortion as a form of OPTICAL ABERRATION
I am just curious, nothing else..
Thanks
tf
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sichko
Joined: 20 Jun 2008
Posts: 2475
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| Posted: Fri Aug 06, 2010 10:20 pm Post subject: |
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sichko wrote:
| trifox wrote: |
yes - I don't know Nikon D90 but I think there shouldn't be any problem ...
The lens has native Nikon mount ..
tf |
Remember that the D90 has an APS-C sensor and a smaller mirror box than the mirror box of a FF camera. What sort of clearance is there between the "tube" which makes up the back part of the lens and the top and bottom of the mirror box on a FF Canon ?
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trifox
Joined: 14 May 2008
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| Posted: Fri Aug 06, 2010 11:16 pm Post subject: |
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trifox wrote:
I need to make some measurement but the lens is going into smoothly
tf
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martinsmith99
Joined: 31 Aug 2008
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| Posted: Sat Aug 07, 2010 11:54 am Post subject: |
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martinsmith99 wrote:
| trifox wrote: |
| So, Martin, do you see the perspective distortion as a benefit then? |
It can be used to creative effect. That's how I use mine as my 19mm on FF only fits certain situations.
Barrel/pincushion is not an attribute I look for though. Many confuse perspective with barrel distortion: one is to do with distance to subject and the other is a lens flaw.
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trifox
Joined: 14 May 2008
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| Posted: Sat Aug 07, 2010 12:51 pm Post subject: |
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trifox wrote:
no worries - Heliar is simply straight in perspective lines - they not too much curved ...
tf
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F16SUNSHINE
Joined: 20 Aug 2007
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| Posted: Sat Aug 07, 2010 5:34 pm Post subject: |
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F16SUNSHINE wrote:
Don't worry film users. Plenty of vignetting from this lens for you also.
I have the LTM version and have used it on film and on RD1/M8.
Film still is best yes but, far from perfect. The odd thing is that the 12mm actually does better than the 15 in this regard (vignette) although I think the 15 renders better ymmv.
Congrats Stan let's see some samples.
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trifox
Joined: 14 May 2008
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| Posted: Sat Aug 07, 2010 6:14 pm Post subject: |
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trifox wrote:
thanks Andy!
I believe that vignetting is going to be reduced at reasonable level. I have done first steps - I replaced the previous adapter and there is a slight improvement..
Heliar 12 f5.6 SL - Nikon -- yes, aaarrghh!
I was battling for this lens on eBBBAY last year -- it was one of the RAREST opportunities to get that lens ..
Final bid -- around 900 GBP, of course ..! One day
See first some samples here:
http://forum.mflenses.com/super-wide-heliar-15-f4-5-sl-5d-mark-ii-t30990.html
tf
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