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jamaeolus
Joined: 19 Mar 2014
Posts: 2946
Location: Eugene
Expire: 2015-08-20
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 Posted: Sun Oct 16, 2022 12:33 am Post subject: Olympus OM 500mm query |
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jamaeolus wrote:
I picked up one of these in excellent shape. I normally try to put a protective UV filter on my lenses ASAP for routine use. This lens, according to at least 2 websites is supposed to take 72mm filters. It seems just a bit small. I tried 2 different filters and both slide straight over the top. Any ideas?
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calvin83
Joined: 12 Apr 2009
Posts: 7555
Location: Hong Kong
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| Posted: Sun Oct 16, 2022 2:01 am Post subject: |
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calvin83 wrote:
Sometimes, it can be a little difficult to attach the filter. Make sure the threads are intact and try it few more time.
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visualopsins
Joined: 05 Mar 2009
Posts: 10756
Location: California
Expire: 2025-04-11
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| Posted: Sun Oct 16, 2022 3:14 am Post subject: |
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visualopsins wrote:
Are you saying the 72mm filters are too big? I don't understand slide over top.
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Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
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M42 Carl Zeiss Jena Flektogon 2.4/35
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Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
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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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Slalom
Joined: 10 Dec 2017
Posts: 154
Location: Stourbridge
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| Posted: Sun Oct 16, 2022 7:18 am Post subject: |
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Slalom wrote:
It seems to be a Reflex, and takes 72mm, but there is a slide out hood which may confuse things.
http://www.mir.com.my/rb/photography/hardwares/classics/olympusom1n2/shared/zuiko/htmls/500mm.htm
Of course it may be something older/odd. |
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jamaeolus
Joined: 19 Mar 2014
Posts: 2946
Location: Eugene
Expire: 2015-08-20
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| Posted: Sun Oct 16, 2022 4:13 pm Post subject: |
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jamaeolus wrote:
Yes, it has the slide out hood. If you take a typical filter and slide it horizontally across the top of a lens at some point it will drop into the opening. This never gets down past the top of the lens. 
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jamaeolus
Joined: 19 Mar 2014
Posts: 2946
Location: Eugene
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| Posted: Sun Oct 16, 2022 4:34 pm Post subject: |
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jamaeolus wrote:
Oops moron alert. I just noticed I was trying seventy seven mm filters. One of which had worn labels and looked like a 72. DOH!
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calvin83
Joined: 12 Apr 2009
Posts: 7555
Location: Hong Kong
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| Posted: Sun Oct 16, 2022 6:12 pm Post subject: |
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calvin83 wrote:
I won't suggest a front filter for a mirror lens. It is likely the filter will decrease the image quality of the lens, especially the one shown above with no multi-coating.
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jamaeolus
Joined: 19 Mar 2014
Posts: 2946
Location: Eugene
Expire: 2015-08-20
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| Posted: Mon Oct 17, 2022 3:45 am Post subject: |
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jamaeolus wrote:
Calvin, are you sure it's not mult-coated? LensDB has the oly 500 f8 as only after 1983 and their quote of the mfr says multi coated optics. It's hard to see in my photo taken with a Samsung tablet but the lens has a distinctive blue-purple cast in reflections. I do agree that ANY extra glass surfaces can reduce IQ somewhat so if I am really looking for that nth degree of IQ I take the filter off, but for general use and such they don't give much degredation if you have clean, coated quality filters on your lens.
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calvin83
Joined: 12 Apr 2009
Posts: 7555
Location: Hong Kong
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| Posted: Mon Oct 17, 2022 11:16 am Post subject: |
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calvin83 wrote:
| jamaeolus wrote: |
| Calvin, are you sure it's not mult-coated? LensDB has the oly 500 f8 as only after 1983 and their quote of the mfr says multi coated optics. It's hard to see in my photo taken with a Samsung tablet but the lens has a distinctive blue-purple cast in reflections. I do agree that ANY extra glass surfaces can reduce IQ somewhat so if I am really looking for that nth degree of IQ I take the filter off, but for general use and such they don't give much degredation if you have clean, coated quality filters on your lens. |
I mean the filter in your photo are not multi-coated or even non-coated. The mirror lens is multi-coated for sure.
A filter, with slightly tilt glass, fitted to a 500mm will result a much image quality decrease than fitted to a 50mm. The better the lens, the more obvious impact you will see. You can try it yourself.
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ZuikosHexanonsandVivitars
Joined: 03 Nov 2021
Posts: 231
Location: Austria
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| Posted: Tue Oct 18, 2022 3:07 pm Post subject: |
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ZuikosHexanonsandVivitars wrote:
Here´s the information leaflet to this lens in English, German, French and Spanish (I guess). It says 72mm filter thread, and there´s a DOF table in it that might come in handy.
https://olypedia.de/images/c/cc/Zuiko_500_8_Anleitung_1.jpg
https://olypedia.de/images/b/b3/Zuiko_500_8_Anleitung_2.jpg
Gratulations to this lens. Last year I got one Vivitar Series 1 mirror 500mm f8 with a bunch of other old lenses and it´s horrible compared to what you got. Will we see some sample shots taken with it?
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jamaeolus
Joined: 19 Mar 2014
Posts: 2946
Location: Eugene
Expire: 2015-08-20
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| Posted: Tue Oct 18, 2022 3:32 pm Post subject: |
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jamaeolus wrote:
Yes. I plan to do a big 500mm reflex comparison. I did a side by side not long ago with the Mirotar and the Minolta MD. I also have the Minolta AF a Tokina and the Rubinar 500 5.6. That will be 6 lenses! A lot of work! But it should be fun. The weather here has been clear and sunny in the afternoons but a nearby forest fire has made air clarity quite poor and being outside for any significant is unhealthy for the lungs. Hopefully it will rain and clean up the air. Forecasts call for rain on friday which is great since we have been dealing with this nastiness for a month and a half.
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Olivier
Joined: 18 Feb 2009
Posts: 5076
Location: France
Expire: 2015-08-06
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| Posted: Wed Oct 19, 2022 8:05 pm Post subject: |
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Olivier wrote:
You have to add the excellent Tamron SP 500 f8. 
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jamaeolus
Joined: 19 Mar 2014
Posts: 2946
Location: Eugene
Expire: 2015-08-20
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| Posted: Wed Oct 19, 2022 9:57 pm Post subject: |
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jamaeolus wrote:
Sadly I don't have that lens. So many lenses so little money! Hmm I wonder if there is a relationship between how many lenses I have and how much money is my "fun" budget....
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jamaeolus
Joined: 19 Mar 2014
Posts: 2946
Location: Eugene
Expire: 2015-08-20
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| Posted: Sat Oct 22, 2022 2:43 am Post subject: |
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jamaeolus wrote:
Update. I see a tamron sp 500mm f8 on my local Craigslist. For 50 dollars. Information is scanty. I discern from the 3 images (one of which is a top down look at the top of the lens cap) a top down look at the mirror and a side view of the lens that it is an adaptall 2 in nikon mount. It says 55BB and also tele macro. It looks OK in photos. I may check it out tomorrow..
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