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KarelDH
Joined: 24 Mar 2011
Posts: 169
Location: Belgium
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 Posted: Fri Jan 09, 2015 1:13 pm Post subject: Sigma 500mm f=4 (indentified) |
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KarelDH wrote:
Hello,
Can anyone help me identify this lens ?
I know
Its a 500 MM mirror lens.
And there us a Passed sticker on it.
Ty
Last edited by KarelDH on Sat Jan 10, 2015 4:28 pm; edited 1 time in total |
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calvin83
Joined: 12 Apr 2009
Posts: 7555
Location: Hong Kong
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| Posted: Fri Jan 09, 2015 1:19 pm Post subject: |
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calvin83 wrote:
Sigma 500mm F4 MIRROR
http://forum.mflenses.com/sigma-mirror-ultratelephoto-500mm-f-4-t38390.html
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visualopsins
Joined: 05 Mar 2009
Posts: 10973
Location: California
Expire: 2025-04-11
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| Posted: Fri Jan 09, 2015 3:46 pm Post subject: |
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visualopsins wrote:
Having owned this lens, I can heartily agree with Calvin83! Not a bad mirror lens imho...
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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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KarelDH
Joined: 24 Mar 2011
Posts: 169
Location: Belgium
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| Posted: Fri Jan 09, 2015 6:37 pm Post subject: |
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KarelDH wrote:
Hello, and thanks!
I bought it out of curiosity at the good price of €55
Looks never used. But there is a fair amount of fungus inside.
I will test it tomorrow.
Bye |
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Attila
Joined: 24 Feb 2007
Posts: 57865
Location: Hungary
Expire: 2025-11-18
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| Posted: Fri Jan 09, 2015 9:02 pm Post subject: |
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Attila wrote:
 wow congrats, I hope you will get at least usable images, don't give up if looks crap at first try, 500mm f4 is very hard to focus on APS-C , may a bit better on full frame.
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Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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visualopsins
Joined: 05 Mar 2009
Posts: 10973
Location: California
Expire: 2025-04-11
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| Posted: Fri Jan 09, 2015 10:12 pm Post subject: |
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visualopsins wrote:
I'm pretty sure this lens is f/8...but that doesn't make it any easier to focus on APS-C -- it is difficult enough on FF! -- and a very steady tripod or over 1/1000 sec shutter speed is required...
Easy to get inside to clean...to enter front, slide built-in hood back to expose three screws, remove, then unscrew the front bezel -- the large lens elements slide out. Use spanner on rear to remove two elements & spacer there.
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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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KarelDH
Joined: 24 Mar 2011
Posts: 169
Location: Belgium
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| Posted: Fri Jan 09, 2015 10:30 pm Post subject: |
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KarelDH wrote:
Nope its an 500mm F4
I am looking for a firm that cleans sigma lenses in the BENELUX.
I normally clean my lenses myself. but whit the Mirror i have no experience. so im going to leave it to a pro.
If anyone knows a firm. let me know 
ty |
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visualopsins
Joined: 05 Mar 2009
Posts: 10973
Location: California
Expire: 2025-04-11
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| Posted: Sat Jan 10, 2015 3:04 pm Post subject: |
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visualopsins wrote:
Are you an attorney? Instead of "identification" you write "indemnification". 
These are simple to disassemble -- the mirror is well protected, but don't touch it with anything -- cleaning the mirror, if necessary, should be by a professional lens-clean expert.. I doubt the mirror has any fungus. The glass parts are easy to clean...
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ 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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KarelDH
Joined: 24 Mar 2011
Posts: 169
Location: Belgium
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| Posted: Sat Jan 10, 2015 4:40 pm Post subject: |
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KarelDH wrote:
Hello,
I opened the lens to see how bad the damage was.
after removing the fungus on the glass elements i could see the damage the mold did to it. Big pats of the second element are hazy.
So i know this lens would cost a fortune to repair. so i gently removed the fungus on the back mirror.
(To anyone doing this it will leave scratches on the mirror ( also allot of mold on it ). but i am past hoop of saving this lens.
But more of keeping it as clean as possible.
None the less, the lens does give better result than before.
And i am hoping for a Moon or some good weather.
Ill post some pictures soon.
Ty |
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