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  #1  
Old 21st December 2017
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drmarkf drmarkf is offline
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OM Zuiko 300mm f4.5

I think it's time to move on my really nice manual focus OM Zuiko 300mm f4.5 (i.e. the tele for the OM-1 - 4 series of full frame film cameras): I'm just not using it, and I could do with the space in the equipment cupboard.

I bought this in the late 1980s (I think) second-hand from University Cameras in Cambridge, and I used it occasionally while I had my OM cameras. Since then I've kept it mainly for nostalgic reasons, although it does give respectable performance between f5.6 and f8 on an OMD with an adapter, and it improves still further with a Metabones Speedbooster.

It's a Made in Japan lens, serial #141308.

I rate the condition conservatively overall as Exc++. I can see no marks at all on front or rear elements, and there's a really tiny amount of internal dust (I've got plenty of m4/3 lenses with more internal dust than this!) and I can't see any fungus. Shining an LED through the lens doesn't reveal anything nasty at all (try that with most 4/3 system zoom lenses today and you'll get a shock).

The diaphragm is slick and snappy and hasn't got any oil visible. There are a few minor, small scrapes on the outside of the body and a tiny bit of wear to the milled surface of the aperture ring. It comes with the tripod collar and original front and rear caps.

The bayonet looks almost new; the metal extendable lens hood works smoothly and firmly (and is a great deal better than the nasty placcy things used on Zuiko teles today).

£145 via bank transfer to include safe packaging and RMSD to UK Mainland. Happy to discuss sales and shipping elsewhere.

Here are some web resources on this 300:
http://www.biofos.com/cornucop/omz_e1.html
http://www.bytesmiths.com/OM_Tele/index.html
https://www.mir.com.my/rb/photograph...tmls/300mm.htm

I have shown it mounted on an E-M1ii via a Novoflex adapter (neither of which are included!) first with everything as compact as it will go, then focussed out and with the hood extended.







[





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  #2  
Old 21st December 2017
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Re: OM Zuiko 300mm f4.5

A stunning lens indeed. Alas, if only I used my OM4Ti a bit more.
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Cameras: E-M5, E-PM2, OM40, OM4Ti
Lenses (M.Zuiko Digital): 7-14mm/F2.8, 12-40mm/F2.8, 40-150mm/F2.8+TC1.4x, 12-50mm/F3.5-6.3, 14-42mm/F3.5-5.6 EZ, M.ZD 40-150 F4-5.6 R, 75-300mm/F4.8-6.7 Mk1, 12mm/F2, 17mm/F1.8
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  #3  
Old 23rd December 2017
RobEW RobEW is offline
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Re: OM Zuiko 300mm f4.5

Quote:
Originally Posted by drmarkf View Post
... Shining an LED through the lens doesn't reveal anything nasty at all (try that with most 4/3 system zoom lenses today and you'll get a shock).

...
Very tangential question. How do you carry out the "shining a LED" test? (If it's likely to become a big tangetial disxcussion rather than just a free bump, I can ask on another thread in a different part of the forum ...)
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Old 23rd December 2017
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Re: OM Zuiko 300mm f4.5

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Originally Posted by RobEW View Post
Very tangential question. How do you carry out the "shining a LED" test? (If it's likely to become a big tangetial disxcussion rather than just a free bump, I can ask on another thread in a different part of the forum ...)
Free bumps always welcome, especially when they are useful in other ways too!

Just turn on the brightest (preferably LED) torch you own, and look at it through the lens with the aperture fully open, and also move the lens around a bit so you inspect the light through all parts of the front and rear elements.

It's a brilliant (literally) way of inspecting lenses for internal dust and fungus and issues with the external elements.

You have to be able to hold the aperture open, so its easiest with classic manual equipment: it is enormously more revealing than just peering in from one end or the other, and vintage 'pumper' zoom lenses usually look like a dusty snowglobe!
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  #5  
Old 25th December 2017
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Re: OM Zuiko 300mm f4.5

Lens not mounted on a camera body then, and looking through the correct way round - i.e. with rear element up to your eye. I've done something like this before - pointing the lens towards a light source. Maybe a bright LED is even better. Is there a way of holding the aperture open on a non manual lens?
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Old 25th December 2017
Ricoh Ricoh is offline
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Re: OM Zuiko 300mm f4.5

Quote:
Originally Posted by drmarkf View Post
...Just turn on the brightest (preferably LED) torch you own, and look at it through the lens with the aperture fully open, and also move the lens around a bit so you inspect the light through all parts of the front and rear elements.

It's a brilliant (literally) way of inspecting lenses for internal dust and fungus and issues with the external elements.
Brilliant is the word. Just remember an LED is a source of collimated light, and personally I would not chose to focus such a narrow beam of light on my retina, and certainly with most care through a lens, making sure the beam is out of focus.
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  #7  
Old 25th December 2017
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Re: OM Zuiko 300mm f4.5

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Originally Posted by Ricoh View Post
Brilliant is the word. Just remember an LED is a source of collimated light, and personally I would not chose to focus such a narrow beam of light on my retina, and certainly with most care through a lens, making sure the beam is out of focus.
Fair point: itís actually the internal glass surfaces you need to look at, so you donít need to look directly at the light at all - any milkinesss, surface imperfections and dust just leap out at you as the lens is moved around. Actually, as long as your room is dim, itís perfectly possible to do this very effectively with a conventional incandescent element torch bulb.

To get a reality check I do recommend looking at a few modern lenses and zooms before trying this on older ones. Even quite recent zooms, especially those with sections than Ďpumpí out, get a lot of internal dust quite quickly. Itís competely invisible in ones images unless itís really bad, of course, although milkiness and fungus does produce visible degradation and may be progressive.

Most modern auto lenses I own do Ďrestí diaphragm open, although I see the 12-100 doesnít. I donít know how to open these: any suggestions?
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Too much Oly gear.
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Old 29th December 2017
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Re: OM Zuiko 300mm f4.5

How good is this lens?? Compared to the M4/3rds 300, that is way out of my price range at the moment, but I don't mind manual focus, what would I need for this to fit successfully on my EM1 Mk1 ??

Peter
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  #9  
Old 30th December 2017
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Re: OM Zuiko 300mm f4.5

Quote:
Originally Posted by Rocknroll59 View Post
How good is this lens?? Compared to the M4/3rds 300, that is way out of my price range at the moment, but I don't mind manual focus, what would I need for this to fit successfully on my EM1 Mk1 ??

Peter
Hi Peter.

I think a classic lens like this is bought and used for different reasons than any modern, auto product!

It certainly is possible to get good images with it (have a look at those links I gave), and it would give pleasure in use since the controls are so direct and slop-free (in comparison with the vague & plasticky feel of said 'modern, auto product'), but even though it might be doing me out of a sale I'd hesitate to recommend it to you as a sole long telephoto.

I suspect most people in your position would be better off saving for an Oly 75-300 or a Panasonic 100-300.

To use this OM Zuiko on a modern OMD or Pen body you'd need an OM to micro 4/3 adapter. I have a couple by Novoflex which are expensive (around £100) but superbly made with treatment to prevent internal reflections etc. I use them on the several other OM Zuiko lenses I use.

Alternatively, you can go for a cheap Chinese knock-off adapter from eBay (£5ish), or aim down the middle with one from one of the recognised decent mid-quality manufacturers, like Metabones or Fotodiox - I recommend doing that. e.g. https://www.amazon.co.uk/Fotodiox-Le.../dp/B002TSWTAA

This lens will also fit to a m4/3 body via one of the expensive Speedbooster adapters from Metabones and others, that act like an inverse teleconverter and maximise the light coming through the full-frame lens. These are specialist and probably not something for you to think about at the moment (costing north of 300 quid, but they do give good results in my experience with this lens, and especially also with the 200mm f4 OM Zuiko among others).

Hope that helps.
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Mark

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Too much Oly gear.
Panasonic 12-32, 12-35, 15. Laowa 7.5.
Assorted legacy lenses, plus a Fuji X70 & a Sony A7S.
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  #10  
Old 2nd January 2018
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Re: OM Zuiko 300mm f4.5

£135, anyone?
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http://www.microcontrast.com
Too much Oly gear.
Panasonic 12-32, 12-35, 15. Laowa 7.5.
Assorted legacy lenses, plus a Fuji X70 & a Sony A7S.
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  #11  
Old 4th January 2018
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Re: OM Zuiko 300mm f4.5

Now sold: many thanks all.
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http://www.microcontrast.com
Too much Oly gear.
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Assorted legacy lenses, plus a Fuji X70 & a Sony A7S.
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