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VichySchwa
Joined: 08 Jan 2013
Posts: 32
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 Posted: Fri Nov 01, 2024 3:19 am Post subject: Spiratone Minitel 500mm f/8 Mirror Lens |
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VichySchwa wrote:
An eBay buy that I couldn't pass up at $22 Original Japanese Minitel (vs Minitel-C or Minitel-M) that came with 2 filters - 1 ND of some strength and a haze filter?
#1
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Digital Bodies: Canon 5D Mk I, Sony A6000
Zooms: Vivitar T4 55-135/2.8, Vivitar Series 1 M/SR 70-210/3.5
Primes: Vivitar T4 24mm/2.8, Vivitar M42 28mm/2.5, Soligor T4 28mm 2.8, MC-II W. Rokkor-HG 35mm 2.8, Leitz Summaron L39 3.5cm 3.5, Konica Hexanon 40mm 1.8, Yashinon-DS 50mm 1.7, Konica Hexanon 50mm 1.7, MC-I Rokkor-PF 50mm/1.7, Leitz Summitar L39 5cm/2, Vivitar M/SR 55mm 2.8 Macro, MC-I Rokkor-PF 58mm 1.4, Helios 44-2 58mm/2 (early 80s Valdai), Tamron SP 90mm 2.5 Macro (52B), Leitz Elmar L39 9cm/4, Juplen T2 135mm/2.8 |
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VichySchwa
Joined: 08 Jan 2013
Posts: 32
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| Posted: Fri Nov 01, 2024 3:24 am Post subject: |
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VichySchwa wrote:
A couple of shots after I dialed in focus (mostly) of a moonless sky
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Digital Bodies: Canon 5D Mk I, Sony A6000
Zooms: Vivitar T4 55-135/2.8, Vivitar Series 1 M/SR 70-210/3.5
Primes: Vivitar T4 24mm/2.8, Vivitar M42 28mm/2.5, Soligor T4 28mm 2.8, MC-II W. Rokkor-HG 35mm 2.8, Leitz Summaron L39 3.5cm 3.5, Konica Hexanon 40mm 1.8, Yashinon-DS 50mm 1.7, Konica Hexanon 50mm 1.7, MC-I Rokkor-PF 50mm/1.7, Leitz Summitar L39 5cm/2, Vivitar M/SR 55mm 2.8 Macro, MC-I Rokkor-PF 58mm 1.4, Helios 44-2 58mm/2 (early 80s Valdai), Tamron SP 90mm 2.5 Macro (52B), Leitz Elmar L39 9cm/4, Juplen T2 135mm/2.8 |
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danfromm
Joined: 04 Sep 2011
Posts: 593
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| Posted: Fri Nov 01, 2024 6:42 pm Post subject: |
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danfromm wrote:
Are the short star trails due to coma or to a long exposure? |
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VichySchwa
Joined: 08 Jan 2013
Posts: 32
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| Posted: Fri Nov 01, 2024 7:34 pm Post subject: |
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VichySchwa wrote:
| danfromm wrote: |
| Are the short star trails due to coma or to a long exposure? |
It's equally possible there might have been some camera shake but the slight linear movement consistent across different stars seems to suggest long exposure... I'm not a skilled astrophotographer by any means - I decided that ISO 8000 and a 2 second exposure gave me adequate results for my quick and dirty shots. I was on a tripod but I don't have a ball head, so I positioned my tripod in a weird way to shoot straight up (I'm realizing I could have mounted my camera differently and rotate one of my planes 90 degrees to aim straight up) and had tried to hold in place, and shot with a 2 second timer.
I'll be doing more research on how to better aim and expose as I think I could get into this. with a 2x tele on my APS-C body I'd have an effective full frame coverage of 1500mm, but I don't know how much the tele might degrade the image. More research on higher quality converters (I've got a basic vivitar 2x tele).
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Digital Bodies: Canon 5D Mk I, Sony A6000
Zooms: Vivitar T4 55-135/2.8, Vivitar Series 1 M/SR 70-210/3.5
Primes: Vivitar T4 24mm/2.8, Vivitar M42 28mm/2.5, Soligor T4 28mm 2.8, MC-II W. Rokkor-HG 35mm 2.8, Leitz Summaron L39 3.5cm 3.5, Konica Hexanon 40mm 1.8, Yashinon-DS 50mm 1.7, Konica Hexanon 50mm 1.7, MC-I Rokkor-PF 50mm/1.7, Leitz Summitar L39 5cm/2, Vivitar M/SR 55mm 2.8 Macro, MC-I Rokkor-PF 58mm 1.4, Helios 44-2 58mm/2 (early 80s Valdai), Tamron SP 90mm 2.5 Macro (52B), Leitz Elmar L39 9cm/4, Juplen T2 135mm/2.8 |
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Doc Sharptail
Joined: 23 Nov 2020
Posts: 1200
Location: Winnipeg Canada
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| Posted: Fri Nov 01, 2024 10:19 pm Post subject: |
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Doc Sharptail wrote:
You picked up Saturn's rings almost clearly in the first image. Lens must be in very good condition.
Some stars and planets track faster than Luna. Jupiter's storm bands are doable with a clean 500 mirror, and upper quality 2X teleconverter.
Tamron made one that has a bit of a good reputation in a few places.
There's a few posts around here on lunar shots with mirrors, with a bit of exposure information in the discussions.
-D.S.
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D-810, F2, FTN.
35mm f2 O.C. nikkor
50 f2 H nikkor, 50 f 1.4 AI-s, 135 f3.5 Q,
50 f2 K nikkor 2x, 28-85mm f3.5-4.5 A/I-s, 35-105 3.5-4.5 A/I-s, 200mm f4 Micro A/I, partial list.
"Ain't no half-way" -S.R.V.
"Oh Yeah... Alright" -Paul Simon |
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VichySchwa
Joined: 08 Jan 2013
Posts: 32
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| Posted: Sat Nov 02, 2024 1:29 am Post subject: |
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VichySchwa wrote:
| Doc Sharptail wrote: |
You picked up Saturn's rings almost clearly in the first image. Lens must be in very good condition.
Some stars and planets track faster than Luna. Jupiter's storm bands are doable with a clean 500 mirror, and upper quality 2X teleconverter.
Tamron made one that has a bit of a good reputation in a few places.
There's a few posts around here on lunar shots with mirrors, with a bit of exposure information in the discussions.
-D.S. |
I got a Tamron 52B (90mm 2.5 macro) and Didn't realize it's only true 1:1 with a good 7 element converter or the custom extension tube.... The Tamron and Tokinas are the one's I'm looking at for 2x, I'm open for suggestions on other quality converters to look out for.
_________________
Digital Bodies: Canon 5D Mk I, Sony A6000
Zooms: Vivitar T4 55-135/2.8, Vivitar Series 1 M/SR 70-210/3.5
Primes: Vivitar T4 24mm/2.8, Vivitar M42 28mm/2.5, Soligor T4 28mm 2.8, MC-II W. Rokkor-HG 35mm 2.8, Leitz Summaron L39 3.5cm 3.5, Konica Hexanon 40mm 1.8, Yashinon-DS 50mm 1.7, Konica Hexanon 50mm 1.7, MC-I Rokkor-PF 50mm/1.7, Leitz Summitar L39 5cm/2, Vivitar M/SR 55mm 2.8 Macro, MC-I Rokkor-PF 58mm 1.4, Helios 44-2 58mm/2 (early 80s Valdai), Tamron SP 90mm 2.5 Macro (52B), Leitz Elmar L39 9cm/4, Juplen T2 135mm/2.8 |
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visualopsins
Joined: 05 Mar 2009
Posts: 11022
Location: California
Expire: 2025-04-11
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| Posted: Sat Nov 02, 2024 1:38 am Post subject: |
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visualopsins wrote:
| VichySchwa wrote: |
| Doc Sharptail wrote: |
You picked up Saturn's rings almost clearly in the first image. Lens must be in very good condition.
Some stars and planets track faster than Luna. Jupiter's storm bands are doable with a clean 500 mirror, and upper quality 2X teleconverter.
Tamron made one that has a bit of a good reputation in a few places.
There's a few posts around here on lunar shots with mirrors, with a bit of exposure information in the discussions.
-D.S. |
I got a Tamron 52B (90mm 2.5 macro) and Didn't realize it's only true 1:1 with a good 7 element converter or the custom extension tube.... The Tamron and Tokinas are the one's I'm looking at for 2x, I'm open for suggestions on other quality converters to look out for. |
Bravo capturing those rings! The tilt is almost edge-on now...
The Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron) is pretty good -- goes to 1:1 without any TC or extension due to "built-in TC" design, quite similar to Tamron 90mm. Comes ion many "brands" such as Lester Dine, Kiron and of course Vivitar.
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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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VichySchwa
Joined: 08 Jan 2013
Posts: 32
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| Posted: Sat Nov 02, 2024 2:44 am Post subject: |
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VichySchwa wrote:
| visualopsins wrote: |
Bravo capturing those rings! The tilt is almost edge-on now...
The Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron) is pretty good -- goes to 1:1 without any TC or extension due to "built-in TC" design, quite similar to Tamron 90mm. Comes ion many "brands" such as Lester Dine, Kiron and of course Vivitar. |
 I do have the Vivitar (Komine) 55mm f/2.8 Macro which also is 1:1 on it's own - I'll get around to posting a few shots from that as well.
_________________
Digital Bodies: Canon 5D Mk I, Sony A6000
Zooms: Vivitar T4 55-135/2.8, Vivitar Series 1 M/SR 70-210/3.5
Primes: Vivitar T4 24mm/2.8, Vivitar M42 28mm/2.5, Soligor T4 28mm 2.8, MC-II W. Rokkor-HG 35mm 2.8, Leitz Summaron L39 3.5cm 3.5, Konica Hexanon 40mm 1.8, Yashinon-DS 50mm 1.7, Konica Hexanon 50mm 1.7, MC-I Rokkor-PF 50mm/1.7, Leitz Summitar L39 5cm/2, Vivitar M/SR 55mm 2.8 Macro, MC-I Rokkor-PF 58mm 1.4, Helios 44-2 58mm/2 (early 80s Valdai), Tamron SP 90mm 2.5 Macro (52B), Leitz Elmar L39 9cm/4, Juplen T2 135mm/2.8 |
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