[LRflex] Re: Was Shift, now RT
- From: David Young <dsy@xxxxxxxxxxxxxxx>
- To: <leicareflex@xxxxxxxxxxxxx>
- Date: Sat, 22 Feb 2014 11:00:54 -0800
Hi Philippe!
Not necessarily outdated. There are only, perhaps, a dozen or two demosaicing
algorithms. Each firm uses the one that they think best. The other features
may change with versions... the demosaicing algorithm may also change with new
version... but that happens much less often and the basic principle is still
the same. For the absolute best results, any photog needs to find the raw
converter that gives him the best for his camera and photo style.
My suggestions were meant to inform, not dictate what people should do. I
have, however, found it a fascinating area to explore.
Those who do not wish to go this deep into the subject, and who are happy with
their present software, should stick with it.
Me? I'm going to change (I think) to RT, not because of the multiple options
in demosaicing, but because of the very easy to use, and very powerful UI.
Distortion correction is a breeze, compared to other software packages I've
used...including my beloved SilkyPix.
For years, I've had a tendency to drop my camera to the right, as I shoot...
resulting in many tilted horizons. I do it less with the new Olympus, 'cause
it's lighter. But, it's still a problem.
Every software package will let you correct this problem. But RT's solution is
just too easy! You find a vertical or horizontal line in the image. Click on
the adjust icon, and holding the mouse button down, draw a line along that
feature. RT computes and displays the amount off horizontal or vertical in
degrees & 10ths of degrees. When you release the mouse button, the image is
corrected, and auto-cropped, within a second. Fast and efficient!
Give Alice a hug for us!
Cheers!
David.
> Thanks for the intelligence David
>
> Yet from what I see, the comparisons are outdated; L3 beta is long gone,
> we at LR5 or CC6 now - my copy of LR 5 works better than the previous
> ones even though the changes in the sliders/controls make it difficult
> for regulars such as me to adapt.
>
>
> Amities
> Philippe
>
>
> Tous vos emails en 1 clic avec l'application SFR Mail sur iPhone et
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>
> ========================================
>
> Message du : 22/02/2014 02:49
> De : "David Young " <dsy@xxxxxxxxxxxxxxx>
> A : leicareflex@xxxxxxxxxxxxx
> Copie à :
> Sujet : [LRflex] Was Shift, now RT
>
>
> HI Bill!
>
> Every raw converter I've ever seen, uses an algorithm to demosaic (or
> convert) the raw image to JPEG or TIFF. But, just one.
>
> Interestingly, RawTherapee has a choice of 8 different algorithms, so
> you can pick the one best suited to your camera or photo style. (Two
> are dedicated to High ISO images.)
>
> For those interested, a comparison of various methods (with examples)
> can be found here:
>
> http://tinyurl.com/mz26pu5
>
> Another page compares the DCB algorithm to others, including Silkypix,
> DXO, Bibble and Lightroom's algorithms - among numerous others. Again,
> with a very effective, interactive image which shows the differences,
> quite clearly. Found here:
>
> http://www.linuxphoto.org/html/test_demosaicing.html
>
> This and 109 pages of instructions (pdf), are keeping me busy!
>
> The current release (v4.0.01)is a "development build", and is fairly,
> but not totally stable. Needs adequate memory. But, for what it does,
> at the price, I can live with it's foibles. It's open-source, and the
> team is working towards a completely stable release. (For those who
> don't wish the troubles, the previous, very stable release, 3.0, is
> still available.)
>
> Cheers!
> David.
>
>> On Feb 21, 2014, at 3:37 PM, David Young wrote:
>>
>>> It is a remarkably feature-laden program... very capable.
>>>
>>
>> I'll say! And the price is right.
>>
>> Bill
>>
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