Olympus UK E-System User Group
Olympus UK E-System User Group

Join our unique resource for Olympus Four Thirds E-System DSLR and Pen and OM-D Micro Four Thirds photographers. Show your images via our free e-group photo gallery. Please read the e-group.uk.net forum terms and conditions before posting for the first time. Above all, welcome!


Go Back   Olympus UK E-System User Group > Cameras, lenses and system accessories > Lens focus > Macro

Macro Getting really close

Reply
 
Thread Tools Display Modes
  #1  
Old 8th March 2019
Harold Gough Harold Gough is offline
Full member
 
Join Date: Oct 2014
Location: Reading UK
Posts: 5,630
Thanks: 56
Thanked 781 Times in 712 Posts
Likes: 40
Liked 3,097 Times in 1,664 Posts
Leitz Wetlar Photar 25mm vs Laowa 25mm at f11

Long before Laowa lenses were heard of, I built up a small collection of specialist, legacy macro lenses to, potentially, use in my everyday macro work. I tried some of these, other remaining unused. The Photar 25mm was one I had even forgotten about. I thought it would be interesting to compare it with my copy of the Laowa 25mm x2.5 to x5 in my particular working conditions (outside, no tripod).

There being little room for error with such little DOF, such a comparison can only be indicative and not definitive. I shot a lot of images with both lenses at x 2.5*and x 5* set on the Laowa and with the Photar extended to match the FOVs#. Most of these were at nominal f11, with a few at f16. Not enough f16 were good enough for meaningful comparisons. I chose the best of the f11s for posting here. * On 2x crop of m4/3 so x5 and x10 FF equivalent.# 7mm and 3.5mm.

Having looked at recent prices of the Photar, I was looking forward to selling it and carrying on with the Laowa. it was only when I had picked the best of the images and processed them that I began to feel more fond of the Photar.

Because of the short working distance (ca half that of the Laowa) I used two flash units instead of my usual three.

The images are uncropped and all treated identically for NR, sharpening, etc.

The subject is a mushroom which grows on dead wood with its gills outwards. As it grows on the underside of the host, their orientation to gravity is normal. This is the resupinate habit, the genus in this case being Resupinatus. Crust fungi have the same habit but without the gills.

https://www.fredmiranda.com/forum/to...9433/#13796000

This seems to be the same population:

https://www.fredmiranda.com/forum/to...2670/#13819245

The fruiting body is not as flat at its rim as it may seem to be, making getting all in focus quite a challenge.

My conclusion is that the Photar resolves more fine detail at the magnification and aperture combination tested.

The images are shown first at "x5" and second at "x2.5", in each case with the Photar first.

EM-1 in manual mode, twin RC TTL flash, ISO 400.

Harold










NB I missed the z out of Wetzlar, not accessible to edit.
__________________
The body is willing but the mind is weak.
Reply With Quote
The Following User Liked This Post:
OM USer (9th March 2019)
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Laowa 25mm x2.5 - x5 Macro Lens Now Available Harold Gough Macro 4 1st November 2018 06:19 PM
Green Shield-bug Through Laowa 25mm at x2.5 and f8 Harold Gough Macro 0 3rd October 2018 04:08 PM
Tiny Harvestman Through Laowa 25mm x2.5 to x5 Harold Gough Foto Fair 7 22nd August 2018 01:35 PM
Tiny Harvestman Through Laowa 25mm x2.5 to x5 Harold Gough Macro 2 21st August 2018 04:53 PM
Leitz Photar 50mm 2.8 Harold Gough Legacy Lenses 5 18th February 2016 06:56 PM


All times are GMT. The time now is 02:29 PM.


The Write Technology Ltd, 2007-2019, All rights reservedAd Management plugin by RedTyger