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Monday, 21 October 2019

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Accidentally shot JPG? Yup.

I'm delighted to see Ctein back at TOP.

Mike, it is great to once again read an article by Ctein on The Online Photographer. I hope to see much more from him in the future, his worldview and technical prowess fits in well with all the things you do here.

Meanwhile, I've been getting behind on JPEGs and such because I've been doing film photography for a bit. Guess it is too much to ask for, but the new black and white fine grained 400-speed film from Bergger, Pancro 400, has much to commend it, including its dual emulsion that unites silver bromide and silver iodide; wasn't silver iodide what made daguerreotypes work? Interesting, and as the B&H newsletter has it, this is a serious film.

Anyhow, someone like Mr. Ctein could go to town on the promise of new R&D for film photography creating a new era of photography for those willing to go back to the future. Let's see, develop safer chemistry to work with, more computer-savvy, thoroughly artful enlargers (logical given that digital will likely control bread and butter photography going forward, while film could capture many art photographers given half a chance), a range of mind-boggling, modern new high quality film cameras and film types (potentially), what else do we need to help new-era film people succeed? To get the right answers, we need to ask the right questions.

Thanks,
Jeff Clevenger
Ann Arbor, Michigan

Left-field question... Does anyone think that phone-taken .jpg images would be much improved by this jpg-to-raw process? JPGs from phones *may* be handled just like JPGs from cameras, but perhaps there are differences?

Dear Michael,

The better the JPEG's are to begin with, the less improvement you are going to see in the conversion. For JPEG's that don't show any obvious artifacting, you are not likely to see any. On the other hand, if you're talking about significantly altering the tonal distribution or color balance with curves or dodging/burning-in, etc. The conversion will be a big help because it will let you avoid banding issues from "picket fence" histograms.

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Dear Jeff,

I'm not entirely certain how to interpret your question/request, but in any case I'm not the person to come to. If you're only asking for my opinions on the subject, they would not be informed opinions. I'm not paying much attention to what happens in that area and I no longer have the inside contacts with the companies to acquire information. There are other people out there who would be far more expert than I.

If you're asking me to actually do research and investigate, the plain and simple answer is that that doesn't interest me. Translation: you can't afford me. Even back in the heydays of the magazines, I rarely wrote about or researched subjects that didn't interest me, as Mike can attest. I never even read Photo Techniques before Mike took over, back when it was nicknamed "the magazine of applied densitometry."


- pax \ Ctein
[ Please excuse any word-salad. Dragon Dictate in training! ]
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-- Ctein's Online Gallery. http://ctein.com 
-- Digital Restorations. http://photo-repair.com 
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"Hand it a JPEG of your choice and it will generate a RAW file"

Would that be a Remedial Action Workplan file, a Real Action Wrestling file, or perhaps a Ripe Analogue Waveform file...?

Does this software do anything different than opening a .jpg in ACR and adjusting it there?

How would it work with old scanned jpgs? or is only for native digital files? Interesting. Many thanks.

Dear band,

If you still can't see any difference when you click through to the full size illustrations, then it's a problem with either your monitor, your browser, or your eyes. I'm afraid I can't help you with any of those. You'll need a hardware, software, or medical specialist.

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Dear Dave,

ACR is an adjustment program — it doesn't create RAW. Running a JPEG through it isn't going to fix any of the JPEG problems I described.

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Dear Hernan,

Yes, it works fine with any kind of JPEG, no matter the source.


- pax \ Ctein
[ Please excuse any word-salad. Dragon Dictate in training! ]
======================================
-- Ctein's Online Gallery. http://ctein.com 
-- Digital Restorations. http://photo-repair.com 
======================================

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