[Gimp-user] photography

2007-09-13 Thread norman
Although I have been trying to use Gimp for quite some time to enhance
digital photographs it is only recently that I have begun to realise how
powerful a piece of software it really is. Photography has been a hobby
of mine for over 50 years but it is only in the last week or so that my
'digital darkroom' has started to flourish. This is very much due to a
video course I am following on www.meetthegimp.org which, in my opinion,
is a great place to start for the amateur photographer.

One of the things which has emerged is the importance of producing
photographs in RAW in order to get as much information as possible for
processing. For me, this means finding and purchasing another camera and
I wonder if anybody could suggest a good starting point for me to find
what I need. I have tried Google but have not found the sort of
information I think I need. I have just two criteria, the camera must be
light and easy to handle (a bit shaky due to age and arthritis) and
shoot in RAW. All suggestions gratefully received.

Norman

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Re: [Gimp-user] photography

2007-09-13 Thread Alexander Rabtchevich
Norman, first of all, you should decide, how quality photos would you 
like to have. You have 2 options:
1. Digital camera . Pros: small weight and dimensions, built-in lens can 
have a range zoom, video. Contras:  Low image quality, high noise at any 
ISO over 100-200, no control over depth of field, low focusing speed and 
accuracy... Almost all of modern digicams do not have RAW.

2. DSLR - a camera with interchangeable lens. Pros: high dynamic range, 
high focusing speed,  high image quality even at ISO up to 800-1600, 
control over depth of field (bokke), very good optical viewfinder... 
Contras: weight, quality lens can be expensive, no video, some models do 
not have live view - image can be seen on the screen after it has been 
shot, not during.

If you have  enough will I would recommend you buying DSLR.

norman wrote:
 Although I have been trying to use Gimp for quite some time to enhance
 digital photographs it is only recently that I have begun to realise how
 powerful a piece of software it really is. Photography has been a hobby
 of mine for over 50 years but it is only in the last week or so that my
 'digital darkroom' has started to flourish. This is very much due to a
 video course I am following on www.meetthegimp.org which, in my opinion,
 is a great place to start for the amateur photographer.

 One of the things which has emerged is the importance of producing
 photographs in RAW in order to get as much information as possible for
 processing. For me, this means finding and purchasing another camera and
 I wonder if anybody could suggest a good starting point for me to find
 what I need. I have tried Google but have not found the sort of
 information I think I need. I have just two criteria, the camera must be
 light and easy to handle (a bit shaky due to age and arthritis) and
 shoot in RAW. All suggestions gratefully received.

 Norman

   


-- 
With respect
Alexander Rabtchevich

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Re: [Gimp-user] photography

2007-09-13 Thread Alexander Rabtchevich
John Allsopp wrote:
 Jan Tomasek wrote:
   
 Shooting in RAW is just same as into JPEG on Nikon, saving to memory 
 card is done in background, but because of bigger size of file camera's 
 buffer is able to hold only 2-3 images and after that you have to wait.
 

 Just to clarify that: the similarity is in the file saving, otherwise 
 saving to RAW still saves more info, right?
   
RAWs have more bytes per pixel,  no WB is applied, nor sharpening or 
excessive noise reduction. PC RAW-image algorithm is much more 
complicated and  quality than the one from any camera. You camn easily 
apply some exposure compensation after shooting... This  list can be 
prolongated.

 It's just, I haven't got Gimp to do RAW yet (but I will, now you've 
 pointed out the plugin below). I won't bother if there's no difference 
 in the file quality.

   
 Gimp have limitation on 8bit per color channel, that is shame because 
 cameras are usualy producing 12bit. Other software like Adobe 
 Photohoshop is able to work in 16bit, but that adds another expences to 
 your hobby.
 

 I'm sure I read there is a professional version of The Gimp which 
 provides more bits. I don't know how that compares price-wise with 
 Photoshop.

 Those pics are very nice, Jan :-)

 Cheers
   
UFRaw (ufraw.sf.net) handles RAWs with no posterization  (it has more 
than 8 bits internally). Upcoming GIMP 2.4 has only 8 bits,  2.6 is 
planned to have 16 or even more.

-- 
With respect
Alexander Rabtchevich

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Re: [Gimp-user] photography

2007-09-13 Thread Johan Vromans
Alexander Rabtchevich [EMAIL PROTECTED] writes:

 1. Digital camera . ...
 2. DSLR - ...

I'd say there's quite a lot of camera's in between.

I'm still quite happy with my Sony DSC-V1 which has all the things a
(semi-)professional photographer requires (even a flash mount shoe)
without being a DSLR.

-- Johan
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Re: [Gimp-user] photography

2007-09-13 Thread John Allsopp
norman wrote:
For me, this means finding and purchasing another camera and
I wonder if anybody could suggest a good starting point for me to 
find
what I need.
 
  My rule is, if I haven't the time to research which is the best 
product,
  I just buy the PC Pro recommendation. In this case, it was the Nikon
  D80. I'm not a gadget kinda guy, but the D80 is a beautiful thing.
 
  Thank you for your suggestion I must have a look at the photo magazines.
 
  Norman

Well, the reason I like PC Pro (UK, no idea if it's available elsewhere) 
is it goes buy this, and I don't have to think. If I wanted to make a 
decision by reading the photo magazines, I'd have to understand 
everything and make proper decisions. Plus those magazines often have 
the feeling of everything's positive, so this lens is great, oh and so's 
this one, this one's fantastic, but this one will blow you away. How do 
you choose? Time's money, and sometimes I have to be efficient and or 
quick, in those situations I often delegate to PC Pro.

I think part of my relief at having the complexity taken away, 
sometimes, is I deal with complexity all day, so it's not a pleasure for 
me to delve into the specs. I imagine if you have a job that doesn't tax 
your head too much and are a hobby photographer, then delving into the 
specs would be a pleasure.

Anyway, PC Pro's current recommendations are:

Digital SLR:
Sony DSLR-A100 or Nikon D80 in second place

Digital Compact:
Canon Digital Ixus 900 Ti or Sony Cyber-shot DSC-W35

Must admit, I bought their compact recommendation of the time a few 
months ago, the Canon Digital Ixus 65 and was disappointed. I think the 
exposure washes out colours, there's a dark patch on the screen. Not 
sure there's a RAW format mode anyway on that.

J
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Re: [Gimp-user] photography

2007-09-13 Thread Leon Brooks GIMP
On Thursday 13 September 2007 17:58:02 norman wrote:
 This is very much due to a video course I am following on
 www.meetthegimp.org which, in my opinion, is a great place
 to start for the amateur photographer. 

Hello from sunny Tullah, Tasmania, where dialup is the peak of
modern Internet connectivity. Videos are not a real option here,
but OTOH there is plenty to point a camera at. Here are some
grotty throwaway shots from a Fuji camera:

http://tullah.fit2.bur.st/

I've heard good things said about the Canon 40D (a DSLR) by
people who actually use the suckers for a living. Still ghasp
dollars an item, but fairly good value for the ghasp. It's like
a cut-down version of the 5D, which is an excellent little
gadget.

Cheers; Leon
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Re: [Gimp-user] photography

2007-09-13 Thread Alexander Rabtchevich
Johan Vromans wrote:
 1. Digital camera . ...
 2. DSLR - ...
 

 I'd say there's quite a lot of camera's in between.

 I'm still quite happy with my Sony DSC-V1 which has all the things a
 (semi-)professional photographer requires (even a flash mount shoe)
 without being a DSLR.
   
I would not agree :).  There have been a prosumer class, but now it is 
dying.  DSLRs killed it due to higher image quality and  more profits 
for a manufacture due to interchangeable lens.

Pro compacts for amateurs? Can you remember CURRENT compact cameras with 
RAW? Minolta is not in the market. There are no Sony compacts with RAW. 
I can recall Canon G9 - not so small and with awful image (12MP on a 
small sensor) from any strict POV. Nikon? No. Ricoh Caplio G100 - they 
put too much MP on a small matrix too plus it costs way too much. That 
is the whole list. Dot.


-- 
With respect
Alexander Rabtchevich

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Re: [Gimp-user] photography

2007-09-13 Thread Leon Brooks GIMP
On Thursday 13 September 2007 20:25:33 you wrote:
 To set in turn of cost: Sony Alpha 700 (1400 USD),
 Canon 40D (1500+ USD), Nikon D300 (1800+ USD). 

Thaks for that nice, simple list.

I got good value out of a Sony DSC-F707 until the day I
ran it over with my 2t van.

Several of the pro photographers I know have longed for
a Canon 5D but not been able to afford one; they all
seem to think well of the 40D, after studying it, Not perfect,
but close enough, sort of thing. (-:

Cheers; Leon
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Re: [Gimp-user] photography

2007-09-13 Thread Alexander Rabtchevich
Note, these prises are without lens. The cheapest kit lens cost about 
100$ shipped with the camera. Nikon's one is more expensive due to more 
quality. Sony provides 3 kit zooms: 100$  17-70, new 16-105 and Zeiss 
16-80 (set in turn both of price and quality). Nikon and Canon have 
several kits too.

Canon 5D main advantage is full frame. It is not cropped. So in features 
it is weaker than 30D or 40D, but image quality is higher.


Leon Brooks GIMP wrote:
 On Thursday 13 September 2007 20:25:33 you wrote:
   
 To set in turn of cost: Sony Alpha 700 (1400 USD),
 Canon 40D (1500+ USD), Nikon D300 (1800+ USD). 
 

 Thaks for that nice, simple list.

 I got good value out of a Sony DSC-F707 until the day I
 ran it over with my 2t van.

 Several of the pro photographers I know have longed for
 a Canon 5D but not been able to afford one; they all
 seem to think well of the 40D, after studying it, Not perfect,
 but close enough, sort of thing. (-:

 Cheers; Leon

   


-- 
With respect
Alexander Rabtchevich

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Re: [Gimp-user] photography

2007-09-13 Thread Arnd Baecker
On Thu, 13 Sep 2007, Alexander Rabtchevich wrote:

[...]

 Canon 5D main advantage is full frame. It is not cropped. So in features
 it is weaker than 30D or 40D, but image quality is higher.

Did you do a comparison of 5D vs. 40D?

There is a review
http://www.luminous-landscape.com/reviews/cameras/canon-40D-handson.shtml
which states
...the IQ of the 40D is on a par if not even slightly better than that
of the Canon 5D
(I don't have either of them ...;-)

Arnd
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Re: [Gimp-user] photography

2007-09-13 Thread norman
Thank you all for the interesting comments and information. In the past
I was a great fan of the SLR and I had several starting with a Russian
camera, 'Zenit', which I still have and finishing up with a Nikon with
28mm and 135mm lenses which unfortunately were stolen. My Arthritic
problems were just starting so I moved to an Olympus compact camera with
built in zoom and have staggered from then into the digital era. In my
earlier years I had a dark room which eventually I had to give up and
now I see my computer taking over the functions of a dark room.

So you see, I am not a newcomer to photography and I am well aware of
the problems with dust etc especially with SLR cameras. As I said in my
original posting I need ease of handling and RAW. Changing lenses is not
so easy when one hand is holding a walking cane even standing for any
length of time is a problem. Carrying equipment is not comfortable and I
do like to wander on my own when out for a shoot.

Norman

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Re: [Gimp-user] photography

2007-09-13 Thread John Allsopp
 So you see, I am not a newcomer to photography and I am well aware of
 the problems with dust etc especially with SLR cameras. As I said in my
 original posting I need ease of handling and RAW. Changing lenses is not
 so easy when one hand is holding a walking cane even standing for any
 length of time is a problem.

In that respect I think the Nikon D80 lens changeover is a hassle .. the 
button's not easy and I've a tamron lens that doesn't have the dot so I 
have to work it out every time. I've big hands and I think the whole 
thing's finicky: things like manual exposure settings, the wheel doesn't 
feel very ergonomic, and white balance setting's a faff too. From that 
pov I wouldn't recommend buying one unless you've tried it in the shop 
first.

J
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Re: [Gimp-user] photography

2007-09-13 Thread Alexander Rabtchevich
Norman, there are several possibilities for you. First, you can stick to 
50 mm prime and use it most of the time. It is light, very qualitative 
and fast (F1.4) or 1.7. Second, you can buy light slow zoom such as  
18-200 (26-300 in 35 mm equivalent) and use it all of the time. It 
provides less quality but has a very large focus distance range. Or you 
can use any of the kits like 17-70... Note, to obtain normal focus 
distances you should multiply them by camera crop factor -1.5 for Sony, 
Pentax, Nikon and 1.6 for Canon.

norman wrote:
 Thank you all for the interesting comments and information. In the past
 I was a great fan of the SLR and I had several starting with a Russian
 camera, 'Zenit', which I still have and finishing up with a Nikon with
 28mm and 135mm lenses which unfortunately were stolen. My Arthritic
 problems were just starting so I moved to an Olympus compact camera with
 built in zoom and have staggered from then into the digital era. In my
 earlier years I had a dark room which eventually I had to give up and
 now I see my computer taking over the functions of a dark room.

 So you see, I am not a newcomer to photography and I am well aware of
 the problems with dust etc especially with SLR cameras. As I said in my
 original posting I need ease of handling and RAW. Changing lenses is not
 so easy when one hand is holding a walking cane even standing for any
 length of time is a problem. Carrying equipment is not comfortable and I
 do like to wander on my own when out for a shoot.

 Norman
   


-- 
With respect
Alexander Rabtchevich

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Re: [Gimp-user] photography

2007-09-13 Thread Alex Feldman
You sure discovered a nice little subculture on the Gimp mailing list,
Norman.  Here are some of my thoughts.

In my opinion, if you are just interested in getting a raw image out of
the camera, buy a low-end DSLR and spend as much as you can afford on
glass.  I have a Canon 350d and a 1d Mk IIn.  IQ is similar, just more
features and durability with the 1d - better autofocus, spot metering, etc.

As for net resources, The best all-around net community for photography,
in my opinion, is photo.net  You can get lots of good advice, and some
bad advice, in the forums there.   You probably won't even have to post
a question, just comb the archives.  If you want very detailed, highly
technical reviews of equipment, you'll find those at dpreviews.com.  The
links you will find on those two sites will lead you anywhere you need
to go.

On an unrelated, amusing note, I've been receiving so much bulk email
from Sven Neumann lately that my spam filter tagged it.  I set it
straight.  I would view that as a compliment if I were you, Sven. 
Thanks for all you do.

-- 
--alex

http://alexfeldman.org

begin:vcard
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n:Feldman;Alex
adr;dom:;;686 North Morningside Way;Boise;ID;83712
email;internet:[EMAIL PROTECTED]
tel;work:208-426-3374
tel;home:208-386-9164
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Re: [Gimp-user] photography

2007-09-13 Thread Christoph Bergemann
Hello Norman,

I will be adding my opinion to the growing pool. The Canon G9 was already 
suggested earlier and it might well be a good solution for you. It is a light 
compact camera, produces RAW and has a hotshoe if you want to use a flash. In 
addition it has image stabilization, which might be helpful in your 
situation. Read for example
http://strobist.blogspot.com/2007/06/on-assignment-on-vacation.html
for a review of the preceeding model, the G7, and
http://strobist.blogspot.com/2007/09/new-canon-powershot-g9-makes-my-g7-feel.html
for a list of changes. 

Best wishes, Christoph

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Re: [Gimp-user] photography

2007-09-13 Thread Kevin Cozens
John Allsopp wrote:
 I'm sure I read there is a professional version of The Gimp which 
 provides more bits. I don't know how that compares price-wise with 
 Photoshop.

You might be thinking of Cinepaint which was based on an early version of
GIMP. It handles up to 32-bits per channel and is available for free.
Cinepaint is focused on use by people in the film industry.

-- 
Cheers!

Kevin.

http://www.ve3syb.ca/   |What are we going to do today, Borg?
Owner of Elecraft K2 #2172  |Same thing we always do, Pinkutus:
 |  Try to assimilate the world!
#include disclaimer/favourite |  -Pinkutus  the Borg

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Re: [Gimp-user] photography

2007-09-13 Thread gimp_user
On Thursday 13 September 2007 06:13:52 Mogens Jæger wrote:
 Thank you all for the interesting comments and information. In the

 past

 I was a great fan of the SLR and I had several starting with a

 Russian

 camera, 'Zenit', which I still have and finishing up with a Nikon

 with

 28mm and 135mm lenses which unfortunately were stolen. My Arthritic
 problems were just starting so I moved to an Olympus compact camera

 with

 built in zoom and have staggered from then into the digital era. In

 my

 earlier years I had a dark room which eventually I had to give up and
 now I see my computer taking over the functions of a dark room.
 
 So you see, I am not a newcomer to photography and I am well aware of
 the problems with dust etc especially with SLR cameras. As I said in

 my

 original posting I need ease of handling and RAW. Changing lenses is

 not

 so easy when one hand is holding a walking cane even standing for any
 length of time is a problem. Carrying equipment is not comfortable

 and I

 do like to wander on my own when out for a shoot.
 
 Norman

 Depending on which focal area is of your interest, there are more
 interesting suggestions - all of the bridge type, witch means bigger
 compacts.
 My suggestion is (being an Olympus fan) the Olympus SP-560 UZ. It has
 a 27 - 486 (35 mm equivalent) lens, 8Mp and saves in RAW. Besides that
 it has an CCD-based image stabilization system. And of course full
 manual exposure control.

Just add a couple of points:

1. If you do decide to buy a DSLR which IMHO is the only sound choice if you 
do want to produce high quality images, then it is really important to 
carefully consider what lenses you really need.

2. My personal choice for professional use is the Canon 5D (I have two bodies) 
which has a full frame chip rather then the reduced chip sizes  of 
the consumer DSLR. Inevitably, as cost of producing full frame chips drop 
they will become available on consumer range camera. This means that any 
lenses you buy which cannot be used on full frame will be useless when you 
upgrade to full frame. (e.g the S lenses on the canon range will not be a 
good long term investment. Most phtographers change their bodies far more 
frequently than lenses. Over a lifetime a photographer will spend much more 
on lenses than camera bodies.

3. If you do want to produce projected images then gimp will serve you well 
because digital projectors have very low resolution (most run  at 1024x768). 
For such images you do not need a high resolution camera.  HOWEVER if you 
want to produce large high quality prints  then unfortunatelyt gimp does not 
cut the mustard. The current lack of supprt for 16bit per channel means it is 
far below the industry standard. (Photoshop CS3 now has support that extends 
well beyond 16bit per channel).and for that reason I most other other 
professionals use photoshop much as we would like to be able to use gimp.

Another gimp problem is the learning curve -- it does not have an interface 
that makes it an easy step to move from photoshop to gimp.

Anyway you makes your choice from waht suits you




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[Gimp-user] photography

2006-09-06 Thread David
I think that the Resynthesizer Plugin is a good match for what you wish.

There is an excellent tutorial demonstrating how to use it at
http://www.schwarzvogel.de/resynth-tut-en.shtml


-- 

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[Gimp-user] photography

2006-09-05 Thread ajtiM
Hi!

I am new in the Gimp world'' and I bought Akkana Pecks book Beginning Gimp 
which is useful but I like something more about photos corrections. If 
someone, please check on my flickr site there are a fountain photo and on 
this picture is moire very heavy. Where could I find more information, help 
how to correct moire? On the picture with ship is heavy tilted horizon. 
Okay, with rotating and crop I can correct but on this way I lost a lot of 
photo. Are there any instructions how to correct tilted horizon for example, 
please?

Thank you.

-- 
http://www.flickr.com/photos/lumiwa
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