www.photomacrography.net :: View topic - Functionality of Legacy Olympus OM MF Lenses with Pen Micro
www.photomacrography.net Forum Index
An online community dedicated to the practices of photomacrography, close-up and macro photography, and photomicrography.
Photomacrography Front Page Amateurmicrography Front Page
Old Forums/Galleries
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Functionality of Legacy Olympus OM MF Lenses with Pen Micro
Goto page Previous  1, 2, 3 ... 6, 7, 8 ... 10, 11, 12  Next
 
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Equipment Discussions
View previous topic :: View next topic  
Author Message
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Mon Mar 21, 2011 11:40 pm    Post subject: Reply with quote

elf wrote:
Are these latest shots sharpened?

Yes.

All (RAW) get a one-step sharpening in the camera. Then I add anoth 1-2 stages (JPEGs) in Olympus Master

Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.
Back to top
View user's profile Send private message
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Mon Mar 21, 2011 11:59 pm    Post subject: Reply with quote

OzRay wrote:
I've done macro shots outdoors with a Nikkor 400mm and macro tubes and it works very well to give you standoff distance, but I find it better for larger subjects such as butterflies etc.

That's why I bought mine too.

This is an exercise. That the (non-macro) lens resolves the legs of a pollen beetle from a couple of meters away proves something, not necessarily something of practical use. Daffodils, being the only subject available, are mainly a mass of yellow and don't offer much fine detail.

Next task is to use some of the lenses I use for butterflies, etc. Unfortunately, sunny weather doesn't last very long in the current weather system. By the time I get setup it is often gone.

Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.


Last edited by Harold Gough on Sat Apr 23, 2011 2:10 am; edited 1 time in total
Back to top
View user's profile Send private message
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Tue Mar 22, 2011 3:03 am    Post subject: Reply with quote

Harold Gough wrote:
Well, I just won an EP-2, 14-42mm lens and a Zuiko 70-300mm digital lens on Ebay.


The 70-300 has some pros and some cons. At the 70mm end, with 72mm extension, I can get 2/3 of a standard postage stamp to fill the frame but at about 10cm from the front of the lens. The 300mm, no extension, covers slightly more than two stamps at about one meter, similar to what I am used to with my Tamron 70-210mm* plus a x2 converter, used for many years for larger, active insects. That reminds me: I have a rare Carl Zeiss Jena 75-300 for OM which I have yet to use/test. Watch this space!

* http://www.adaptall-2.org/lenses/19AH.html

What I don't like is the 70-300's focusing ring. It has exactly the same feel (rather lack of it, turning freely at all times) whether it is having effect or not (AF + manual fine focus or manual focus).

Neither do I like the 'hair trigger' characteristics of the camera's shutter release button when half-depressed for focusing. (I do have it on shutter priority but that is no excuse).

Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.
Back to top
View user's profile Send private message
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Tue Mar 22, 2011 5:59 am    Post subject: Reply with quote

I have compared the three zoom lenses of most interest to me, the idea being to see the comparative detail resolved in a similar area of a subject. I used two subjects: a Chinese 3-D coloured knitted/cloth wall-hanging decoration, selected area ca 2"/59mm wide; part of the back cover of a book, showing part of the bar code.

The camera was on a tripod with 8 second delay, lenses at f11 or so, the EP-2 having its own ideas: f13 & f22!), no filters, hoods, no in-camera sharpening, RAW files each given 2 steps of sharpening in Olympus Master.

Shutter speeds 1/25 or 1/30 sec for the fabric; 1/40. 1/2000! and 1/40 for the bar code.

a) The Olympus Zuiko Digital 70-300mm f4-5.6 which came with the camera






b) My Tamron SP MF Model 19AH 70-210mm (macro capability) film lens





c) My previously untried Carl Zeiss Jena f75-300mm Macro Jenazoom II (OM mount).





Well, I'm pleased I bought that Zeiss!

I hope some of this is of some interest.

Harold

Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.
Back to top
View user's profile Send private message
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Tue Mar 22, 2011 6:55 am    Post subject: Reply with quote

There is one of the Carl Zeiss lenses on Ebay UK right now currently at a bargain price:

Item: 390298677708

Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.
Back to top
View user's profile Send private message
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Wed Mar 23, 2011 9:14 am    Post subject: Reply with quote

This sharpening lark is driving me insane! Albums here, albums there, albums everywhere! Shocked

Here are some results for a funnel spider web (entrance ca 10mm wide). Tripod arrangement and delayed release as before, ISO 400 f11, each lens on closest working distance/maximum magnification, all sharpened to my satisfaction:

Olympus Zuiko 50mm MF macro:



Tamron Adaptall-2 SP 90mm macro MF



Tamron Adaptall-2 SP 35-80mm



Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.
Back to top
View user's profile Send private message
lauriek
Site Admin


Joined: 25 Nov 2007
Posts: 2404
Location: South East UK

PostPosted: Wed Mar 23, 2011 2:48 pm    Post subject: Reply with quote

Harold have you got the 4/3->micro4/3 adapter? Is that 70-300 the micro4/3 or the 4/3 lens?

If you do have the adapter you owe it to yourself to check out the Zuiko digital 35mm/f3.5 macro lens, it's for 4/3 bodies - and it's a little cracker of a lens, seriously sharp, compact for a 4/3 lens and really quite cheap for new Olympus glass.. The only downside is relatively short working distance at 1:1 inherent to a lens/sensor combo like this.
_________________
Flickr | www.laurieknight.net | Blog
Back to top
View user's profile Send private message Visit poster's website
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Thu Mar 24, 2011 12:38 am    Post subject: Reply with quote

lauriek wrote:
Harold have you got the 4/3->micro4/3 adapter? Is that 70-300 the micro4/3 or the 4/3 lens?

If you do have the adapter you owe it to yourself to check out the Zuiko digital 35mm/f3.5 macro lens, it's for 4/3 bodies - and it's a little cracker of a lens, seriously sharp, compact for a 4/3 lens and really quite cheap for new Olympus glass.. The only downside is relatively short working distance at 1:1 inherent to a lens/sensor combo like this.


I attach the 4/3 zoom (I didn't think there was a micro equivalent but it came with the camera anyway) via the 4/3 adapter. As of yesterday, I can attach OM lenses via that adapter, plus a 4/3 OM adapter, or direct to Micro 4/3.

Thanks, Laurie, for the recommendation. I'll check out the 35mm macro. Yesterday I was potentially into £1,500 for an engine refurb for my car. I may have a much cheaper alternative. In the meantime my piggy bank is behind razor wire! Crying or Very sad

In the longer term, possibly this summer, a lightweight but versatile digital kit could replace my OM/Tamron for trips by air, but the X-Pan will still reign supreme (panoramic and 35mm formats).

Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.
Back to top
View user's profile Send private message
ChrisR
Site Admin


Joined: 14 Mar 2009
Posts: 8233
Location: Near London, UK

PostPosted: Thu Mar 24, 2011 12:54 am    Post subject: Reply with quote

By the way..
That Oly 50mm f3.5 was apparently optimised for 20:1, which seems odd bearing in mind its focus abilities. ( I have one I bought as "broken" for £18. Confused )
It seems to me that most lenses give a respectable image for web pictures about 800 pixels wide, they have to be real duffers not to.
Back to top
View user's profile Send private message
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Thu Mar 24, 2011 3:00 am    Post subject: Reply with quote

ChrisR wrote:
By the way..
That Oly 50mm f3.5 was apparently optimised for 20:1, which seems odd bearing in mind its focus abilities. ( I have one I bought as "broken" for £18. Confused )
It seems to me that most lenses give a respectable image for web pictures about 800 pixels wide, they have to be real duffers not to.

Interesting. That would suggest its main use was to be on extension.

Although my drift into digital is partly to be able to post web images they must be usable at higher resolution elsewhere.

Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.
Back to top
View user's profile Send private message
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Tue Mar 29, 2011 9:28 am    Post subject: Reply with quote

lauriek wrote:
If you do have the adapter you owe it to yourself to check out the Zuiko digital 35mm/f3.5 macro lens, it's for 4/3 bodies - and it's a little cracker of a lens, seriously sharp, compact for a 4/3 lens and really quite cheap for new Olympus glass.. The only downside is relatively short working distance at 1:1 inherent to a lens/sensor combo like this.

It isn't weather-proof either but I don't do much photography in the rain. Anyway, the lens has some glowing reviews and I've just bought a used one for £159 and should have it tomorrow. (My car repair will not be too expensive after all!).

Thanks Laurie.

Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.
Back to top
View user's profile Send private message
Pau
Site Admin


Joined: 20 Jan 2010
Posts: 4709
Location: Valencia, Spain

PostPosted: Tue Mar 29, 2011 10:03 am    Post subject: Reply with quote

ChrisR wrote:
By the way..
That Oly 50mm f3.5 was apparently optimised for 20:1, which seems odd bearing in mind its focus abilities.
...


Shocked any reference for that?
I have this OM lens from my film days and it's a pretty standard macro lens (it focuses to 1:2 without extension tubes). It's a very good lens form infinity to 1:1, in the same league as my Canon compact macro 50mm 2.5, but I never suspected i would be optmized as a microscope objective.
_________________
Pau
Back to top
View user's profile Send private message
ChrisR
Site Admin


Joined: 14 Mar 2009
Posts: 8233
Location: Near London, UK

PostPosted: Tue Mar 29, 2011 1:44 pm    Post subject: Reply with quote

I'll look for it. Perhaps I should have said 1:20 .
Or perhaps more likely a mis-print or a mis-read somewhere!

Later - poking around the net I found various descriptions (one said it has 6 elements, the rest 5 !) , perhaps Alan Wood's http://www.alanwood.net/photography/olympus/macro-lens-50-35.html is the most reliable.
Optimised for 1:0.1, ie one tenth of life size, but the "recopmmended" range is given as 1:0.1 to 1:2, then the 80mm Macro lens is preferred.
Back to top
View user's profile Send private message
lauriek
Site Admin


Joined: 25 Nov 2007
Posts: 2404
Location: South East UK

PostPosted: Tue Mar 29, 2011 2:13 pm    Post subject: Reply with quote

Good news on the car and the lens, I'm pretty sure you'll like this one! Smile

The 35/3.5 is not _rated_ as weatherproof but I have used it for years outdoors in all sorts of weather, except really heavy rain, and it's continued to work flawlessly. I do mostly shoot outdoor stuff with weatherproof bodies though, E1 or E3 since the 1 wore out (and I generally pop a plastic food bag or something over the macro flash controller if I'm using that rig in the wet)
_________________
Flickr | www.laurieknight.net | Blog
Back to top
View user's profile Send private message Visit poster's website
Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Tue Mar 29, 2011 10:55 pm    Post subject: Reply with quote

ChrisR wrote:
I'll look for it. Perhaps I should have said 1:20 .
Or perhaps more likely a mis-print or a mis-read somewhere!

Later - poking around the net I found various descriptions (one said it has 6 elements, the rest 5 !) , perhaps Alan Wood's http://www.alanwood.net/photography/olympus/macro-lens-50-35.html is the most reliable.
Optimised for 1:0.1, ie one tenth of life size, but the "recommended" range is given as 1:0.1 to 1:2, then the 80mm Macro lens is preferred.

Correct but the 80mm, which I obtained last year but have yet to use, works only on extension, only at around 1:1* and focusing only at close distances. * Of course, as with all lenses, you can use at higher magnifications than the designers intended.

Harold
_________________
My images are a medium for sharing some of my experiences: they are not me.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Equipment Discussions All times are GMT - 7 Hours
Goto page Previous  1, 2, 3 ... 6, 7, 8 ... 10, 11, 12  Next
Page 7 of 12

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group