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On 1/3/2023 at 5:11 AM, pegelli said:

Thanks, Those are exactly my settings, so that doesn't seem to be the problem.

Uploading to SmugMug via firefox is flawless (and then liking to LUF is also flawless)
Uploading directly to LUF via firefox is a problem (lower saturated/drab colours)

So my "work around" to avoid the colour problem by direct uploading to LUF is to use Chrome for that.

Maybe there is a bug in Firefox when you upload to that site. If you are so inclined, you could file a bug report with Firefox and provide them with sample images to experiment with.

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2 hours ago, Wandering Photographer said:

Given you description, it looks like the uploading app may not be sending the calibration information when you up load it. If either the generating monitor or the receiving monitor is uncalibrated then differences may be observed. If the generating monitor and the receiving monitor are the same, i. e. on the same computer then the fact the copy that never left your computer looks different from the one you uploaded indicates the color mapping data was either not sent or not being returned when you view the image you uploaded.

Maybe there is a bug in Firefox when you upload to that site. If you are so inclined, you could file a bug report with Firefox and provide them with sample images to experiment with.

Thanks, it's definitely a problem of calibration information not sent, not received or mangled when uploading from Firefox to LUF. Given LUF is the only site I have this problem with and the saturation loss is also observed when people on other computers with all kind of different browsers view the images it indeed points to a no or incorrect calibration information once the photo is stored in the LUF database. The strange thing is however when I download the "low saturation" version from LUF on my computer and "assign" different color profiles to that file in Photoshop none of them restore the photo at or close to it's original state from before uploading.

Also LUF is the only site where this happens when uploading, none of the other sites I use/visit show this phenomena my strong suspicion is that it is a LUF forum problem and since I have a work around (Chrome or direct link from SmugMug) I don't think it's really worthwhile to spend a lot of my time trying to solve it.

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On 3/6/2021 at 6:15 AM, jonoslack said:

Leica SL2 with 35 APO Summicron - all at f2

. . . there wasn't much colour, but here is a little of it! 

. . . and with a BIG welcome to Clint - our new cockerel who arrived on Thursday

" Why Stop Down" Peter Karbe

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Great neck hackles on that bird. Makes me want to dig out my fly tying equipment.

 

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Barber Shop. 35mm Summicron Asph  V1

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M240 + 35mm Summicron Asph V1

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M10-D, 35mm Summicron Asph.

Cropped to 4x3 format.

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SL2-S -|- LLL 35mm 8-Element (brass version) -|- f/8

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Glass steps

M10M + 35 Summicron IV

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M10M + 35 Summicron IV

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Down by the river

M10R + 35 Summicron IV

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Walk on by

M10M + 35 Summicron IV

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Graffiti, Madrid

Konica Hexar RF + 35 Summicron

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SL2-S -|- LLL 35mm f/2 8-Element -|- 3-shot pano at f/2 -|- vignetting removed in C1 before merging and added back afterward

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M10 + Zeiss Distagon T* 1.4/35 ZM

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M240 + 35mm Summicron Asph

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35 Summicron 8 elements on M3 with Kodak Ekrachrome 100

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With 35 Summarit 

1. f 2.4

2. f 8

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