FAQ FAQ  Forum Search   Events   Register Register  Login Login

Adventures in stereo photography

Page  <1 56789 10>
Author
Howard_S View Drop Down
Senior Member
Senior Member

Joined: 20 March 2008
Country: United Kingdom
Location: Oxford
Status: Online
Posts: 3054
Post Options Post Options   Quote Howard_S Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2021 at 18:03
Thanks, Brian ... the 'in your face' photo is a bit like a 3D movie where something flies out of the screen towards the audience.

I look forward to seeing the chrome X-700!
Howard Stanbury Instagram | Flickr | Web
 



Back to Top
Phil Wood View Drop Down
Senior Member
Senior Member

Joined: 24 March 2013
Country: United Kingdom
Location: England
Status: Online
Posts: 1587
Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2021 at 21:20
Originally posted by Howard_S Howard_S wrote:


The EXIF reports 24-105mm F3.5-4.5; it doesn't say the brand though. Is this in fact the Tamron 28-75 lens shown in the photo? Is the lens ID incorrectly interpreted?


In the picture my A900 has a 24-105, yours has the Tamron 28-75 - I have checked EXIF on an image taken with the Tamron on my A900 - there is no lens info sowing in LR. That said, looking at older images with 24-105 as the ID I see some taken at f2.8!
Back to Top
Phil Wood View Drop Down
Senior Member
Senior Member

Joined: 24 March 2013
Country: United Kingdom
Location: England
Status: Online
Posts: 1587
Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2021 at 22:14
Further investigation - Exiftool reports lens as: Sigma 18-50mm F2.8 or Sigma 20-40mm F2.8 EX DG Aspherical IF or Tamron SP AF 28-75mm F2.8 XR Di LD Aspherical [IF] Macro
Back to Top
Howard_S View Drop Down
Senior Member
Senior Member

Joined: 20 March 2008
Country: United Kingdom
Location: Oxford
Status: Online
Posts: 3054
Post Options Post Options   Quote Howard_S Quote  Post ReplyReply Direct Link To This Post Posted: 03 May 2021 at 23:23
I found this earlier today, https://www.dyxum.com/lenses/lensesmkrid.asp - there are 9 lenses with ID 24 in that table.

When I look in the Lightroom collection and isolate the photos I must have taken with the Tamron lens, I get one, two, or all three of those lenses reported by the Inspector tool. No instances of no lens data being recorded.

Lightroom says the lens that was on your camera was the one used, even when the aperture is recorded at F2.8.

At least I can use the Tamron profile on the photos.

My head hurts.
Howard Stanbury Instagram | Flickr | Web
Back to Top
bonneville View Drop Down
Senior Member
Senior Member

Joined: 19 May 2007
Country: United Kingdom
Location: East Midlands
Status: Offline
Posts: 1962
Post Options Post Options   Quote bonneville Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 2021 at 15:47
Originally posted by Howard_S Howard_S wrote:

I look forward to seeing the chrome X-700!

Squaring the circle, for the benefit of others interested in stereo photography, the arrival of the silver X-700 has started an interesting conversation perhaps more suited to this thread.
Back to Top
Howard_S View Drop Down
Senior Member
Senior Member

Joined: 20 March 2008
Country: United Kingdom
Location: Oxford
Status: Online
Posts: 3054
Post Options Post Options   Quote Howard_S Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2021 at 20:18
Moving on, I have been diverting myself making some Found Stereo/3D Pairs ... unintentional stereo pictures, made from photos I took trying to capture a good view of the subject. You know, you take a photo, chimp, and decide to take a second or third. Under these circumstances I don't delete on the spot and tell myself I can sort the best picture out when I get back to home. Now, four years after a trip to Orkney I'm finding some stereo pairs to make.

The first, the Standing Stones at Stenness, came about when a car drove into the frame of the first photo, so I took a second and had clearly moved slightly. Enough to make a gentle 3D effect after the car was cloned out of the shot:


Found stereo #1: Standing Stones of Stenness

The second was taken at The Italian Chapel on Lamb Holm. I took a couple of shots trying to frame the altar and decided to take it portrait in the end. The landscape pair survived to make


Found stereo #2: The Italian Chapel

Finally, travelling around the eastern side of Orkney we came across an abandoned croft.


Found stereo #3: Abandoned croft, Orkney

Again, thanks for looking!

Howard Stanbury Instagram | Flickr | Web
 



Back to Top
Phil Wood View Drop Down
Senior Member
Senior Member

Joined: 24 March 2013
Country: United Kingdom
Location: England
Status: Online
Posts: 1587
Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2021 at 22:23
Originally posted by Howard_S Howard_S wrote:

I found this earlier today, https://www.dyxum.com/lenses/lensesmkrid.asp - there are 9 lenses with ID 24 in that table.

When I look in the Lightroom collection and isolate the photos I must have taken with the Tamron lens, I get one, two, or all three of those lenses reported by the Inspector tool. No instances of no lens data being recorded.

Lightroom says the lens that was on your camera was the one used, even when the aperture is recorded at F2.8.

At least I can use the Tamron profile on the photos.

My head hurts.


Used it today on my A99ii - LR reports it as 24-105. EXIF is a nightmare with third party lenses! Mind you it's not so good for Minoltas when. like me, you have more than one variant of a lens.
Back to Top
Hezu View Drop Down
Senior Member
Senior Member

Joined: 13 October 2007
Country: Finland
Location: HKI/KSNK
Status: Offline
Posts: 2991
Post Options Post Options   Quote Hezu Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2021 at 07:28
Originally posted by Phil Wood Phil Wood wrote:

EXIF is a nightmare with third party lenses! Mind you it's not so good for Minoltas when. like me, you have more than one variant of a lens.
Some of the newer third party lenses do report the lens id properly. I have Sigma 150 F2.8 Macro and had Tamron 150-600, which do use an unique lens model name in EXIF. But obviously this does not help with the older lenses, especially in cases where the focal lengths of the lens and its fake lens id match.
Back to Top
pegelli View Drop Down
Admin Group
Admin Group
Dyxum Administrator

Joined: 02 June 2007
Country: Belgium
Location: Schilde
Status: Offline
Posts: 31417
Post Options Post Options   Quote pegelli Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2021 at 08:16
Originally posted by Howard_S Howard_S wrote:

Moving on, I have been diverting myself making some Found Stereo/3D Pairs ... unintentional stereo pictures, made from photos I took trying to capture a good view of the subject.
These are very nice Howard, all three work very well as a stereo pair. I've done found panoramas but never found stereo pairs, I'm probably a bit more methodical at deleting double shots which I might regret now
You can see the April Foolishness 2021 exhibition here Another great show of the talent we have on Dyxum
Back to Top
Howard_S View Drop Down
Senior Member
Senior Member

Joined: 20 March 2008
Country: United Kingdom
Location: Oxford
Status: Online
Posts: 3054
Post Options Post Options   Quote Howard_S Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2021 at 00:13
I hesitate to say 'finally', but about the last stereo pairing I can try among my alpha cameras is to put together two A-mount APS-C cameras that use the S1 REMOTE socket and connect them with a Y-splitter to a remote controller/intervalometer.


APS-C stereo with A-mount cameras of a certain vintage
An A100 DSLR (silver) with A65 SLT

With the kit lenses this is much more portable than a full-frame set up, but synchronisation is not good. Certainly not good enough to photograph moving subjects.

The separation of the lenses is quite good because the A100 has the REMOTE socket in the middle of the back of the camera, and the A65 can be positioned so that its socket is on the outside of the two cameras.

So, into the garden to try some shots:







All photos processed in Lightroom and aligned in Stereo Photo Maker.
Howard Stanbury Instagram | Flickr | Web
Back to Top
Miranda F View Drop Down
Senior Member
Senior Member

Joined: 11 January 2014
Country: United Kingdom
Location: Bristol
Status: Offline
Posts: 3830
Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2021 at 15:25
Just spotted this topic - very interesting!
I first met 3D stereoscopic photos as a child in the late '50s with a viewer supplied by Kelloggs - they provided pictures in the cereal packet (mostly lions and tigers, I think) and you could send off for the viewer. I think I still have one somewhere!

At school a friend and I amused ourselves in geography lessons by drawing perspective line drawings in pairs and looking cross-eyed. It took a bit a practice but I can still do it easily now ... unfortunately for this to work, the left hand image has to be placed on the right side and vice versa - almost all the picture pairs shown here are the wrong way round! Do you all have some kind of viewer? If not, can I make a plea for posters to swap the images over to make direct viewing possible?

Anyway, in the 1970s I took a lot of stereo pairs with two Miranda Sensorex cameras and a home-made bracket (side by side) and a 2-in-1 remote shutter cable. I tried prints but the colour slides worked best - a nice big image on a large screen, with home-made spectacles using crossed polarising lenses.

I discovered that the depth perception worked quite well with the cameras side by side and one slightly behind one another to reduce the separation. If the separation is too large the images look like they're painted on flat planes rather than being fully 3D. Telephoto images needed more separation for the depth to stand out but then it made the scene look a bit small...
Miranda F & Sensorex, Sony A7Rii, A58, Nex-6, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras ...
Back to Top
bonneville View Drop Down
Senior Member
Senior Member

Joined: 19 May 2007
Country: United Kingdom
Location: East Midlands
Status: Offline
Posts: 1962
Post Options Post Options   Quote bonneville Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2021 at 17:42
Bravo Howard The garden photos are great and work perfectly. (Cracking garden you have too )

Very interesting to see a silver 100. I like silver cameras and today I developed the first film from my silver X-700. I'll do the magic in Lightroom with NPL and post my 1/3 keepers in the film thread tomorrow (as well as catching up on last weeks Photo 150 )

edit: typos



Edited by bonneville - 13 May 2021 at 17:49
Back to Top
bonneville View Drop Down
Senior Member
Senior Member

Joined: 19 May 2007
Country: United Kingdom
Location: East Midlands
Status: Offline
Posts: 1962
Post Options Post Options   Quote bonneville Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2021 at 17:49
@Miranda F: The breakfast cereal that gave away the viewer and stereo cards was in fact Weetabix, Brian May lays claim to it starting his lifetime journey in stereoscopic photography.

I can see Howard's 3D images (by initially reducing the screen size) and "free-viewing" which I find much easier than cross-eyed viewing. The 3D image drops in between the left and right and varying the distance to screen I can block out the left and right images altogether.

Welcome to the Stereo photo thread. There only seems to be Howard (our leader ), myself and occasionally angora.
Back to Top
Howard_S View Drop Down
Senior Member
Senior Member

Joined: 20 March 2008
Country: United Kingdom
Location: Oxford
Status: Online
Posts: 3054
Post Options Post Options   Quote Howard_S Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2021 at 19:04
I'd love to see the breakfast-cereal introduction to stereo viewing!

It is a vexed question, how to present stereo pairs. A lot of people can free view both parallel and/or cross-over pairs, and I guess here I am following the stereo-card convention (parallel). It seems to be quite common convention in the UK with the Stereoscopic Society and London Stereoscopic Company using the format.

In the Netherlands red-cyan anaglyphs seem to be popular, and in Japan (home of Stereo Photo Maker software, without which none of this would be possible) you see LR/RL and anaglyph/L-R-L 'universal' views used.

Here is an example of the Universal LR/RL view, with the crossover pair on the bottom row:


Stonehenge stone circle

And here's a Universal view with a grey anaglyph on top and L-R-L images below (so crossover viewers would take the centre and third images):


Beecroft and tree

Whether there's enough there to satisfy non-anaglyph viewers, I'm not so sure. Certainly Dyxum limitations apply here, but you can click through to Flickr and access larger versions.
Howard Stanbury Instagram | Flickr | Web
Back to Top
Dyxum main page >  Forum Home > Dyxum Photographs > Open Views Page  <1 56789 10>

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.078 seconds.

Monitor calibration strip

Dyxum.com - Home of the alpha system photographer

In memory of Cameron Hill - brettania

Feel free to contact us if needed.