Clive Murray-White Posted October 24, 2011 Share #1  Posted October 24, 2011 Advertisement (gone after registration) I'm very new to panos, I thought I'd play with the function in Ps 5.5 and got sucked in - all very easy to start with, Manfrotto L bracket, M8 positioned in portrait mode on a heavy Manfrotto tripod, click a few pics and it all gets stitched together. Very happy  But I've got some ideas that will need me to find the correct point to set the camera on a Nodal ninja 3.(purposely haven't called it nodal point or entrance pupil)  I'll be playing with 3 lenses.  Summicron 50 version 4  Elmarit 90 built-in lens hood  Voigtlander 35/1.2  I've read pages upon pages of advice but so far found no simple sets of numbers to follow.  Can anyone help? Link to post Share on other sites More sharing options...
Advertisement Posted October 24, 2011 Posted October 24, 2011 Hi Clive Murray-White, Take a look here M8 pano again!. I'm sure you'll find what you were looking for!
Manolo Laguillo Posted October 28, 2011 Share #2 Â Posted October 28, 2011 What is exactly your question? If it is how to find the pivoting pont with a Leica RF, the answer is: trial and error. When the correct pivoting point is found, the thing in the foreground (a vertical pole, for instance) and the vertical one in the background will coincide in whatever panning position you are. You must try. It will be done in a ten minutes time, no more. Link to post Share on other sites More sharing options...
andybarton Posted October 28, 2011 Share #3 Â Posted October 28, 2011 I wouldn't worry too much about perfect modal points and all that stuff. The software you use to stich is very, very clever. Â I do panoramas hand held and get decent results using the Photoshop function. Link to post Share on other sites More sharing options...
pico Posted October 28, 2011 Share #4  Posted October 28, 2011 I'm very new to panos, I thought I'd play with the function in Ps 5.5 and got sucked in [...]  http://www.digoliardi.net/silly_pan2.jpg  The above is just a casual fun thing of one student walking across campus, stitched with using just the defaults from Photoshop.  Shot with Panasonic G1 and 15mm lens - see how much the G1 sucks? Link to post Share on other sites More sharing options...
pico Posted October 28, 2011 Share #5 Â Posted October 28, 2011 What is exactly your question?If it is how to find the pivoting pont with a Leica RF, the answer is [....] Â The answer is to look at Leica's diagrams of their lenses. The nodal point is marked. With long lenses it is in front of the lens sometimes by inches. If you accept the automatic defaults - well, good luck. Â . Link to post Share on other sites More sharing options...
gravastar Posted October 28, 2011 Share #6 Â Posted October 28, 2011 For the location of a lens entrance pupil look at Leica's technical document (downloadable pdf) for the lens. As an example the 50mm Summilux ASPH pupil is given as "Entrance pupil: 25.7mm (related to the first lens surface in light direction)". That doesn't read too well, what they mean is the entrance pupil is 25.7mm behind the front surface of the lens. Â In practice I find that the position of the aperture adjustment ring is a reasonable approximation for most Leica lenses 24 -50mm focal length when using the Nodal Nija mount. If your picture contains very close foreground objects then you may need better accuracy .... but so far I've never found this neccessary. Â Bob. Link to post Share on other sites More sharing options...
Yogibear Posted October 29, 2011 Share #7  Posted October 29, 2011 Advertisement (gone after registration) http://www.digoliardi.net/silly_pan2.jpg Shot with Panasonic G1 and 15mm lens - see how much the G1 sucks?  Mind your words, I just bought one to mount my Leica lenses on it - and I have already outstanding results with a Hexanon 1:1.2 57mm!  It's not the camera 'sucking', but the poor Micro 4/3 optics available. Link to post Share on other sites More sharing options...
Clive Murray-White Posted October 29, 2011 Author Share #8  Posted October 29, 2011 Thanks everyone, the answer seems to be "trial and error", I'd not seen the aperture ring sugestion anywhere before, so I'll start by setting to the ring and see where it leads me.  Does anyone have a link to Leica lens specs that include "entrance pupil" or no parallax point etc, I can only find new ones on the web site.  No problems in this shot all very straight forward but I'm planning some pictures right in the middle of a forrest where twigs branches and leaves could be quite close to the camera.  Thanks again - Clive  Link to post Share on other sites More sharing options...
squarenegs Posted October 29, 2011 Share #9 Â Posted October 29, 2011 Hmmmmm......... Did you see Mr. Johnson while you were there? Â S.F. Â Â Link to post Share on other sites More sharing options...
Clive Murray-White Posted October 29, 2011 Author Share #10 Â Posted October 29, 2011 I'm sorry Sandy but your reference to Mr Johnson confuses me, partly because I guess its either a film or literary reference that I don't know - and what makes it even stranger is that there are many Johnson families living within a few kms of where the picture was taken - in other words it would be very normal to see a Johnson here. Clive Link to post Share on other sites More sharing options...
ChrisC Posted October 30, 2011 Share #11 Â Posted October 30, 2011 ..... the answer seems to be "trial and error"........ Â Clive - Damn; now I have to break my vow of LUF silence and post the following : Â I sent you a Private Message ----- have you read it? Â Ouch. That hurt. Â Back to silence ........... Â ................ Chris Link to post Share on other sites More sharing options...
Clive Murray-White Posted October 30, 2011 Author Share #12 Â Posted October 30, 2011 Thanks Chris, no I hadn't noticed that I had a PM, sorry about making you break your golden rule! but you say to yourself that it was in good cause.- Clive Link to post Share on other sites More sharing options...
squarenegs Posted October 30, 2011 Share #13  Posted October 30, 2011 I'm sorry Sandy but your reference to Mr Johnson confuses me, partly because I guess its either a film or literary reference that I don't know - and what makes it even stranger is that there are many Johnson families living within a few kms of where the picture was taken - in other words it would be very normal to see a Johnson here. Clive  Clive  Sorry, I didn't mean to be opaque. As a big fan of American blues I figured the reference would be clear, but of course it wouldn't be if blues isn't your thing.  Robert Johnson, dead in 1938 by the age of 27, is likely one of the most important figures in both blues and rock and roll. Legend has it that Mr. Johnson, made a pack with the devil at a rural croossroad, that had him trade his soul for a sudden, unique ability with his voice and guitar. Your picture looks much like those I have seen of what is claimed to be that rural, Mississippi intersection. For the purpose of sustaining such a legend, all the better that he died so you and under mysterious circumstances. Here's Wikipedia on Mr. Johnson: http://en.wikipedia.org/wiki/Robert_Johnson_(musician)  As for panorama work, may I say that I've used a variety of pano programmes since 2002 and the recent versions of Photoshop, in my experience, are so good that they make dedicated software pretty much obsolete.  All the best,  Sandy Link to post Share on other sites More sharing options...
andybarton Posted October 30, 2011 Share #14 Â Posted October 30, 2011 As for panorama work, may I say that I've used a variety of pano programmes since 2002 and the recent versions of Photoshop, in my experience, are so good that they make dedicated software pretty much obsolete. Â Agreed. Link to post Share on other sites More sharing options...
pico Posted October 30, 2011 Share #15  Posted October 30, 2011 Mind your words, I just bought one to mount my Leica lenses on it - and I have already outstanding results with a Hexanon 1:1.2 57mm! It's not the camera 'sucking', but the poor Micro 4/3 optics available.  Actually, the 15mm Voigtlander on the M9 is far better than on the G1, from edge-to-edge. And have you seen the Voigtlander 25mm F/.95 wide-open on the G1 - fantastic!  Can point to images if you wish. Link to post Share on other sites More sharing options...
Clive Murray-White Posted October 30, 2011 Author Share #16 Â Posted October 30, 2011 Ah - Robert Johnson ..... and now I even remember the song, quite a fan of blues myself, part of the baggage of being an art student in England in 1963-4 and a regular at the Ricky Tick Club where Muddy Waters, Sonny Boy Williamson, Willy Dixon etc often played..................I still have the old vinyl records and play them through my computer, Â I do find something quite bizarre about cross roads in Aus in the middle of nowhere with "give way" signs all over the place when maybe 2-3 cars a day may actually use the road. Â Now back to topic - seeing all this mention of of m43 cameras and Leica M lenses made me think that the quickest and easiest way to get our entrance pupil measurements would be to do it with liveview on one these cameras. Link to post Share on other sites More sharing options...
pico Posted October 31, 2011 Share #17  Posted October 31, 2011 Virtual Reality Photography - Entrance Pupil (Nodal Point) Alignment Tech Note  Keep in mind that if you are doing this with objects close to the camera, that by focusing upon the the nearby object you are extending the focal-length of the lens. Link to post Share on other sites More sharing options...
Clive Murray-White Posted October 31, 2011 Author Share #18  Posted October 31, 2011 Virtual Reality Photography - Entrance Pupil (Nodal Point) Alignment Tech Note Keep in mind that if you are doing this with objects close to the camera, that by focusing upon the the nearby object you are extending the focal-length of the lens.  Thanks pico - the link is nice and clear - the changing length of the lens wouldn't have been something I would have thought about on my own and I guess it really reinforces the idea of seeing what happens first with the highly efficient pano programs and then adjusting if I find problems.  A side note: My effort to buy a Nodal Ninja 3 fell through because the seller removed it from ebay (another of these "0" feedback cases) - so I've gone to plan B, a macro 4way slider with a Manfrotto elbow bracket attached, should be right for my needs without costing the earth. Link to post Share on other sites More sharing options...
bpalme Posted October 31, 2011 Share #19  Posted October 31, 2011 These aren't the lenses you listed but it's interesting and may help a little: Panorama Photography - LUG Pearls  Let us know how it goes. I have some pano stuff on order.. sounds fun. Link to post Share on other sites More sharing options...
Clive Murray-White Posted October 31, 2011 Author Share #20  Posted October 31, 2011 These aren't the lenses you listed but it's interesting and may help a little:Panorama Photography - LUG Pearls  Let us know how it goes. I have some pano stuff on order.. sounds fun.  Thanks for that - it looks as if we are beginning to build a good set of links on this topic,for me I think the fun really came into panos with easy to use elements when I upgraded my CS suite to CS5.5.  I think the LUG Pearls link is about as clear as it gets but I would have preferred to see a double slider illustrated, given that the tripod screw is not located directly in line with the millde of any lens on the M8.  One of the things that is really beginning to excite me is the fact I can pretend to myself that for less that $AU150 I've up graded my M8 to M9 or fullish frame by stitching a few snaps together - or put in another way print 2x. Sure this is a fairly clumsy upgrade but for the kinds of pictures I like taking it is a very persuasive view. Link to post Share on other sites More sharing options...
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