Search found 338 matches

by austrokiwi1
Sat Feb 17, 2018 12:57 am
Forum: Equipment Discussions
Topic: 80mm lens shootout - for coin photography
Replies: 48
Views: 15741

This 1:1 issue is actually something that makes APS-C sensors seem more suitable for coin photography. I think this comment shows a clear coin collectors bias to one particular coin series. In regards to coins it can not be taken as a general across the board comment. I believe it focuses on the sp...
by austrokiwi1
Fri Feb 16, 2018 12:23 pm
Forum: Equipment Discussions
Topic: 80mm lens shootout - for coin photography
Replies: 48
Views: 15741

The OLy 80mm F4 bellows lens is optimised for 1-1 . Its not a great lens as it suffers badly from Lateral CA.

As far as Coins go 1-1 is applicable to only small diameter coins. For Thaler/Crown/Silver-Dollar sized coins on a full frame sensor about 0.6X is used.
by austrokiwi1
Thu Feb 15, 2018 11:26 pm
Forum: Equipment Discussions
Topic: 80mm lens shootout - for coin photography
Replies: 48
Views: 15741

See here for the report, and let me know any comments: http://www.macrocoins.com/80mm-lens-shootout.html Hello, Your tests are at about 1:1, but most lenses are not computed for 1:1, except the Macro Symmar or the Olympus. Is this the reason why the macro Symmar is the best? Martin I expect so. A c...
by austrokiwi1
Wed Oct 25, 2017 10:25 pm
Forum: Equipment Discussions
Topic: ilce-7rm3 without focus-bracketing ?
Replies: 7
Views: 1313

I can't find focus bracketing in the manual either. I fear the camera my be like another I have, which is only a compact but has so may functions and specifications , so easily activated, that when I pick it up it invariably doesn't work. Some setting is set that I never intended, which turns half ...
by austrokiwi1
Tue Sep 26, 2017 3:51 am
Forum: Equipment Discussions
Topic: Novoflex reversing adapter for e mount
Replies: 5
Views: 682

Novoflex reversing adapter for e mount

I asked novoflex a couple of years ago to consider producing one of these. Obviously I wasn't the only person to ask:


http://www.novoflex.com/en/products/mac ... eos-retro/


Now we just need a MFT version
by austrokiwi1
Mon Sep 04, 2017 6:21 am
Forum: Equipment Discussions
Topic: New Scanner Nikkor ED Lens Information
Replies: 25
Views: 4555

I've seen that post many times before. the Pen F has a 20MP sensor please refer to it as such
by austrokiwi1
Sun Sep 03, 2017 10:40 pm
Forum: Equipment Discussions
Topic: New Scanner Nikkor ED Lens Information
Replies: 25
Views: 4555

It would be interesting to test those PNs on a higher-resolution sensor like the 80 Mp 4/3" (when used in hi-res mode). I find this to be very useful when trying to detect fine differences between optics. In this case the sensor is not High resolution! There is no 80mp mft sensor on the market at t...
by austrokiwi1
Tue Aug 29, 2017 8:44 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: RAW conversion tools
Replies: 13
Views: 2998

I use capture one pro for raw conversion. I like the batch processing that application provides. I don't sharpen in Capture one... I do apply deconvolution( different process to sharpening) before converting Raw to Tiff
by austrokiwi1
Fri Aug 18, 2017 10:26 am
Forum: Equipment Discussions
Topic: First images from Apo-Lanthar 65mm are online
Replies: 22
Views: 3087

its going off topic but its the mount... although I use an emount camera... I already have the LAEA-4 adapter that will mount the 200mm. Yes it is expensive but its a toss up between the original lanthar ( in A mount) and the minolta.
by austrokiwi1
Thu Aug 10, 2017 9:24 pm
Forum: Equipment Discussions
Topic: First images from Apo-Lanthar 65mm are online
Replies: 22
Views: 3087

The CA issue was identified with the prototype some months ago. I will wait for a few more reviews but although the lens is still tempting I may well give it a miss and save a few more pennies and get the Minolta APO 200mm macro. The last 200mm Macor OI used was the Canon FD 200mm. The focal length ...
by austrokiwi1
Thu Aug 10, 2017 11:36 am
Forum: Equipment Discussions
Topic: First images from Apo-Lanthar 65mm are online
Replies: 22
Views: 3087

More than likely the lens will provide the necessary data to the camera for some correction in editing
by austrokiwi1
Thu Aug 10, 2017 8:27 am
Forum: Equipment Discussions
Topic: New lanthar macro lens
Replies: 16
Views: 2632

Here is one of the first reviews. https://www.dpreview.com/articles/9305738638/voigtlander-65mm-f2-macro-apo-lanthar-sample-gallery-and-user-impressions I am not sure it will measure up to the legendary 125mm. I gained the impression it is geared to normal photography...and it is tempting. It seems ...
by austrokiwi1
Sat Aug 05, 2017 4:08 am
Forum: Equipment Discussions
Topic: Do Sony E lens apertures stay open when lens is off cam?
Replies: 11
Views: 887

I assume you are referring to your Pen F. Immediately on reading your resonse specifically the quoted part I have questions ( some of them long standing): Austrokiwi, Macrero, if I want to fully utilize my MFT sensor at 50-80Mp, the lens must have an effective aperture wider than f8 First a base ass...
by austrokiwi1
Fri Aug 04, 2017 11:44 am
Forum: Equipment Discussions
Topic: Do Sony E lens apertures stay open when lens is off cam?
Replies: 11
Views: 887

I dimly recall reading somewhere that removing an AF e-mount lens while the camera is turned on could cause damage. I am not sure how that could occur... assuming my memory is correct. Is really worth spending Euro999.00 just to reverse the lens? The new lanthar is manual focus and you could use it ...
by austrokiwi1
Sat Jul 29, 2017 3:29 am
Forum: Equipment Discussions
Topic: Minolta CE 30mm F 2.8
Replies: 10
Views: 3426

Just a quick up date. I changed the lighting I was using and found I could get reasonable shots at 12X magnification.