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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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 Posted: Thu Jun 23, 2011 12:59 pm Post subject: 500mm Triplet |
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martyn_bannister wrote:
Well, just to prove what everyone has been saying recently, I had to get myself a bazooka.
This one branded D & N. Somone has been inside to clean it.......
Seems to perform OK stopped down to f22. No mountains to shoot I'm afraid. Sorry!
Even with a Tamron SP F-System 2x tele-converter attached.....
although a little vignetting 
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woodrim
Joined: 14 Jan 2010
Posts: 4060
Location: Charleston
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| Posted: Thu Jun 23, 2011 2:13 pm Post subject: |
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woodrim wrote:
Oh yes, the famous D&N. f/22? Good grief. Although this looks a lot better than my Komura 500mm.
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Woodrim |
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Thu Jun 23, 2011 3:21 pm Post subject: |
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martyn_bannister wrote:
| woodrim wrote: |
| Oh yes, the famous D&N. f/22? Good grief. Although this looks a lot better than my Komura 500mm. |
And that's not the limit. It has a click stop at f32 and goes further than that (f64?) but it's unmarked. With the 2x tele what does that make? f256? Better make sure it's a bright day .
Of course, the major problem is camera shake at 1000mm and f256 !!!! |
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visualopsins
Joined: 05 Mar 2009
Posts: 11053
Location: California
Expire: 2025-04-11
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| Posted: Thu Jun 23, 2011 4:50 pm Post subject: |
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visualopsins wrote:
| martyn_bannister wrote: |
| woodrim wrote: |
| Oh yes, the famous D&N. f/22? Good grief. Although this looks a lot better than my Komura 500mm. |
And that's not the limit. It has a click stop at f32 and goes further than that (f64?) but it's unmarked. With the 2x tele what does that make? f256? Better make sure it's a bright day .
Of course, the major problem is camera shake at 1000mm and f256 !!!! |
f/45 is next after f/22...
Most of these 500/8 triplet bazookas seem to perform pretty well, including the modern versions. I have a Quantaray ( ) that performs surprising well. A better faster lens will have better corners sharpness and less light falloff, but not much more resolution, if any. Nice examples!
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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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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Thu Jun 23, 2011 5:12 pm Post subject: |
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martyn_bannister wrote:
| visualopsins wrote: |
| martyn_bannister wrote: |
| woodrim wrote: |
| Oh yes, the famous D&N. f/22? Good grief. Although this looks a lot better than my Komura 500mm. |
And that's not the limit. It has a click stop at f32 and goes further than that (f64?) but it's unmarked. With the 2x tele what does that make? f256? Better make sure it's a bright day .
Of course, the major problem is camera shake at 1000mm and f256 !!!! |
f/45 is next after f/22...
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No, honestly, it is marked as f32 at the next click stop |
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visualopsins
Joined: 05 Mar 2009
Posts: 11053
Location: California
Expire: 2025-04-11
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| Posted: Thu Jun 23, 2011 8:29 pm Post subject: |
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visualopsins wrote:
| martyn_bannister wrote: |
| visualopsins wrote: |
| martyn_bannister wrote: |
| woodrim wrote: |
| Oh yes, the famous D&N. f/22? Good grief. Although this looks a lot better than my Komura 500mm. |
And that's not the limit. It has a click stop at f32 and goes further than that (f64?) but it's unmarked. With the 2x tele what does that make? f256? Better make sure it's a bright day .
Of course, the major problem is camera shake at 1000mm and f256 !!!! |
f/45 is next after f/22...
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No, honestly, it is marked as f32 at the next click stop |
 Typo. I meant f/45 is next after f/32...
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Fri Jun 24, 2011 7:30 am Post subject: |
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martyn_bannister wrote:
Sorry, yes, I was utilising my tongue before engaging my brain.......
Should go 22/32/45/64/96/128 ???
In which case the tele would add two stops to f45, making it f96 ??? |
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visualopsins
Joined: 05 Mar 2009
Posts: 11053
Location: California
Expire: 2025-04-11
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| Posted: Fri Jun 24, 2011 11:38 am Post subject: |
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visualopsins wrote:
| martyn_bannister wrote: |
Sorry, yes, I was utilising my tongue before engaging my brain.......
Should go 22/32/45/64/96/128 ???
In which case the tele would add two stops to f45, making it f96 ??? |
and my typing fingers have a mind of their own sometimes! (thought f/32, typed f/22...)
f/90 is after f/64:
Wikipedia -- F-number has "f/1, f/1.4, f/2, f/2.8, f/4, f/5.6, f/8, f/11, f/16, f/22, f/32, f/45, f/64, f/90, f/128"
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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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eggboy
Joined: 20 May 2008
Posts: 190
Location: Western Massachusetts, USA
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| Posted: Fri Jun 24, 2011 3:26 pm Post subject: |
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eggboy wrote:
| martyn_bannister wrote: |
In which case the tele would add two stops to f45, making it f96 ??? |
We are getting dangerously close to pinhole camera f numbers now... 
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Eugene
Current Fave Lenses:
Nikkor S.C 5cm/1.4 Rangefinder with Amadeo S>M Mount
Carl Zeiss Jena Sonnar 5cm/2 Contax RF c. 1937,
Nikkor-N 28/2 Nikon F mount
Digital Cameras:
Nikon Z 6II, Panasonic GX8
Film Cameras:
Ansco B2 6x9 Box Camera
Bronica S2
Nikon F2
List and a photo or two of my lens herd |
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Fri Jun 24, 2011 3:40 pm Post subject: |
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martyn_bannister wrote:
| eggboy wrote: |
| martyn_bannister wrote: |
In which case the tele would add two stops to f45, making it f96 ??? |
We are getting dangerously close to pinhole camera f numbers now... |
All the more amazing that it gives a half way sharp image I think! |
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SXR_Mark
Joined: 12 Jun 2010
Posts: 506
Location: England
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| Posted: Fri Jun 24, 2011 3:47 pm Post subject: |
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SXR_Mark wrote:
Is this really a triplet?
I'm not saying it is or isn't, but all the preset lenses of this type that I have had (two 400mm and two 500mm) have had 4 elements in 3 groups. The front group being a cemented doublet and two singlets after the aperture.
A triplet is either three air-spaced elements or three elements cemented together, depending on context. Any lens with a cemented doublet can't really be a triplet whatever the overall configuration.
Mark
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Olympus OM-D E-M1 for everything |
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Fri Jun 24, 2011 3:53 pm Post subject: |
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martyn_bannister wrote:
| SXR_Mark wrote: |
Is this really a triplet?
I'm not saying it is or isn't, but all the preset lenses of this type that I have had (two 400mm and two 500mm) have had 4 elements in 3 groups. The front group being a cemented doublet and two singlets after the aperture.
A triplet is either three air-spaced elements or three elements cemented together, depending on context. Any lens with a cemented doublet can't really be a triplet whatever the overall configuration.
Mark |
I might be wrong. It certainly has two single elements with an aliminium spacer behind the aperture because I took those out to clean them. I couldn't get the front element out, so it may well be a cemented doublet, rather than a single element. |
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SXR_Mark
Joined: 12 Jun 2010
Posts: 506
Location: England
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| Posted: Fri Jun 24, 2011 5:57 pm Post subject: |
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SXR_Mark wrote:
I suspect it is a doublet. A single lens of that size would have pretty bad chromatic aberration.
I found the coatings on these lenses to be very delicate. The front element was very easy to scratch whilst cleaning and one of the rear elements goes hazy. Very hard to find one in really good condition.
Mark
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martyn_bannister
Joined: 23 May 2010
Posts: 1151
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| Posted: Fri Jun 24, 2011 7:41 pm Post subject: |
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martyn_bannister wrote:
The rear elements cleaned up very well. Although the rear-most had lost most of the black paint on it's rim. A permanent marker cured that.
The front group seemed to be held in by the main ring, but there were two side screws, one of which might have locked the group, but the second locked onto nothing. Is suspect that someone had it apart in the past and it might not be assembled correctly.
I bottled out and cleaned this group in place |
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