APG 3+ back to basics.... HOW TO USE IT? 2  

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klausesser
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by klausesser » Wed Aug 07, 2013 11:01 pm

mediavets wrote:APG recognises the lens as a fisheye with a 35mm equiv. focal length of 15mm on D800 in DX mode which shoulkd be good enough.

No. Not at all.

It´s still 10,5mm on a D800. No matter the used sensor size: a 10,5mm stays a 10,5mm - on which camera ever.

Maybe here´s a problem: it IS a 10,5mm on a FX simulating to be a DX. A problem can occur when there are confusing data in the EXIF:
IF the D800 tells an application to be a DX because it´s in DX-mode - the application MIGHT BE thinking it must change the focal-values . .
but the question is: what are the EXIFs telling the app??

Do the EXIF´s KNOW AT ALL it´s a FX simulating a DX? Do the EXIFs tell the app it´s a FX simulating a DX?
Does the app UNDERSTAND this informations? HOW do the apps interprete a FX simulating a DX?

Klaus

In my experiences there are two kind of EXIFs: 1) from the camera-body, 2) from the lens.
Now the camerabody is a FX by the EXIFs, the lens is a DX by the EXIFs.

I don´t know how Nikon "translate" the FX to DX via the EXIFs to an application.
Last edited by klausesser on Wed Aug 07, 2013 11:10 pm, edited 1 time in total.
Simplicity is the keynote of all true elegance. Coco Chanel

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klausesser
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by klausesser » Wed Aug 07, 2013 11:06 pm

mediavets wrote:
klausesser wrote:
Destiny wrote:Even though, I had a RMS of 3.86 with Quick Optimise and a 3.66 with Full Optimise stating its was Very Good, however the final stitch was NOT Very Good...

No surprise: 3.66 is far from being "very good". "Very good" is around RMS 1 or 1.5 - at least with higher resolution than an average fisheye pano.

Irrelevant I think -

Not in my experience.

Klaus
Simplicity is the keynote of all true elegance. Coco Chanel

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klausesser
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by klausesser » Wed Aug 07, 2013 11:33 pm

Destiny wrote:So, a question for you Klaus.. Do you achieve an equally good results using a Fisheye as with a normal prime lens...??.

see it here: Canon 5D2, 2,8/15mm Canon fisheye, 3 steps @2EV, processed in Photomatix, stitched in APG 3.0.7

http://360impressions.de/Mies/

Klaus
Simplicity is the keynote of all true elegance. Coco Chanel

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mediavets
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by mediavets » Wed Aug 07, 2013 11:33 pm

klausesser wrote:
mediavets wrote:APG recognises the lens as a fisheye with a 35mm equiv. focal length of 15mm on D800 in DX mode which shoulkd be good enough.

No. Not at all.

It´s still 10,5mm on a D800. No matter the used sensor size: a 10,5mm stays a 10,5mm - on which camera ever.

Of course. I said "35mm equiv. focal length of 15mm on D800 in DX mode".

klausesser wrote:Maybe here´s a problem: it IS a 10,5mm on a FX simulating to be a DX. A problem can occur when there are confusing data in the EXIF:
IF the D800 tells an application to be a DX because it´s in DX-mode - the application MIGHT BE thinking it must change the focal-values . .
but the question is: what are the EXIFs telling the app??

Do the EXIF´s KNOW AT ALL it´s a FX simulating a DX? Do the EXIFs tell the app it´s a FX simulating a DX?
Does the app UNDERSTAND this informations? HOW do the apps interprete a FX simulating a DX?

Klaus

In my experiences there are two kind of EXIFs: 1) from the camera-body, 2) from the lens.
Now the camerabody is a FX by the EXIFs, the lens is a DX by the EXIFs.

I don´t know how Nikon "translate" the FX to DX via the EXIFs to an application.

Here's an EXIF from one of the images form the sameple image set. Do you see any problems here?


Andrew Stephens
Many different Nodal Ninja and Agnos pano heads. Merlin/Panogear mount with Papywizard on Nokia Internet tablets.
Nikon D5100 and D40, Sigma 8mm f3.5 FE, Nikon 10.5mm FE, 35mm, 50mm, 18-55mm, 70-210mm. Promote control.

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klausesser
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by klausesser » Wed Aug 07, 2013 11:45 pm

mediavets wrote:Do you see any problems here?

No - but maybe Photomatix or APG do. I´m not a specialist regarding EXIFs and how they´re interpreted in different applications. Are you?

I for example know applications which don´t even read particular values in XMLs . . :cool:

The point is: there definitely IS a reason for the issue. And: me, myselfs and i suspect the issue is in some setting.

Klaus
Simplicity is the keynote of all true elegance. Coco Chanel

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Destiny
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by Destiny » Thu Aug 08, 2013 6:45 am

SUCCESS AT LAST...!!!! and I know exactly what was wrong..

The rusty old tin can is shining bright..!!

Destiny....






Primary School Teacher - Hobby Virtual Tours and 3D/360 Object/Product Photographer - Our aim is to create a 3D/360 Virtual Tour Shop/Store with links to 3D/360 degree products. My gear, VR Drive II - D90 - Nikon 10.5 fisheye - Nikon D800 with Nikon-Nikkor 14-24 - NOVOFLEX Magic Balance - Acratech GP Ball-head - Nodal Ninja 4 + RD-16 Rotor - Manfrotto 190CXPRO4 Carbon Fiber Tripod :) :)

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by Destiny » Thu Aug 08, 2013 8:21 am

My new images are available in my DropBox.. All I did was load them into APG, detect and render... Thats it.. ;).. In Photoshop, I used Sharpen once.. NOT sharpen edges.. You might find the image a little too vivid but I like it.. Feel free to edit it as you want.. but. most important this is an opportunity to test the stitching quality using APG 3 and 2.6 on YOUR computer...

Thank you..

Destiny...
Primary School Teacher - Hobby Virtual Tours and 3D/360 Object/Product Photographer - Our aim is to create a 3D/360 Virtual Tour Shop/Store with links to 3D/360 degree products. My gear, VR Drive II - D90 - Nikon 10.5 fisheye - Nikon D800 with Nikon-Nikkor 14-24 - NOVOFLEX Magic Balance - Acratech GP Ball-head - Nodal Ninja 4 + RD-16 Rotor - Manfrotto 190CXPRO4 Carbon Fiber Tripod :) :)

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