PHOTO TIP / PODCAST / WORKSHOP INFO

 

NEW PODCAST UP—Weather for Photographers( Check out the PODCAST notes as well!) www.18percentgraymatter.com

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Just a few spots left in the Eastern Sierra & Fall in NE Ohio workshops in October— check out www.jackgrahamphoto.com/photo-workshops

NEW WORKSHOP ADDED   NOV 2011–DEATH VALLEY II  http://www.jackgrahamphoto.com/death-valley-national-park

Special Fall Color workshop here in the Oregon Wine country, Columbia River Gorge and Hood River Valley in late October with Dr. Bill Campbell and me……………..  do NOT miss this one..http://www.jackgrahamphoto.com/columbia-river-gorge-mountains-and-wine-country-oregon-sw-washington-jack-graham-dr-bill-campbell-co

ICELAND 2012 is filling up nicely—if you are thinking about it:  http://www.jackgrahamphoto.com/ultimate-iceland

“Hidden China” 2012–come with us to an area that few photographers have been (Optional week in Tibet too!)

                            http://www.jackgrahamphoto.com/2012-hidden-china-optional-tibet

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Glacier NP © Jack Graham

The battle continues.. RAW vs JPEG . Well here’s my $0.02…. frag out the dead horse.. let’s beat it one more time!

Please know before you read this that I a a strong proponent of shooting RAW folks, as is the vast majority of pros, much more well known and established than me…. and there IS a reason for it. Ive tried to list these reasons concisely below.

Note I have seen some excellent results from a few of my photographer friends who shoot jpegs. However, in my humble opinion ( and this writing is just that) I would bet they would be better if they were shot RAW…JG

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RAW:

A RAW file is a proprietary format with uncompressed image data coming directly from the camera’s sensor, not processed , with no color rendering information. The file includes complete (lossless) data from the camera’s sensor. When shooting Raw files, your computer not the camera processes the data. Obviously your computer is far superior to processing files than your camera. Shooting Raw will gives you total control over how your image looks and allows you the possibility for correcting inadequacies in post processing. You’ll need to use software to process RAW files.

All Raw files are proprietary to the camera manufacturer and sometimes the camera model. Raw files must be converted to be used in Photoshop or other programs. RAW has much more exposure latitude. Often blown out highlights ( if they are not to badly blown out) can be reclaimed.

Color balance is also far superior in the final results of your processing when shooting RAW. Large prints made from RAW files are superior to those of JPEG files. RAW is not an abbreviation for anything. Controlling richness, detail (sharpness), color range etc in processing is much greater with a Raw file, even though the Raw files coming out of the camera may look bland

Lundy Canyon, Eastern Sierra © Jack Graham Photography

JPEG ….

stands for “Joint Photographic Experts Group”. The JPEG file uses compression which results in a some loss of quality. Artifacts can be introduced in JPEG files each time the file is opened and saved. These are most noticeable in the sky or like toned gradients.

Also JPEG compression can bring out digital noise in the photograph. If you shoot in the JPEG format, I recommend using the highest quality settings, lowest ISO and presets for conditions in your camera ( i.e. cloudy, sunny etc.). When shooting in the JPEG mode your camera’s internal firmware processes the image It will take the information directly off the sensor and quickly process it prior to saving it on your memory card. Some color and resolution is lost.

With some cameras there is slightly more noise in a JPEG than in a comparable Raw version In the JPEG mode, the image blocks (usually 8×8 pixels) determine what can be “safely” discarded. The rule of thumb is that the higher the compression ration the lower the quality of JPEG is provided (more information being discarded). When the image is put back together a row of 24+ pixels that had 24+ different tones could provide less than 6. That valuable information is completely lost.

The quality of a JPEG taken with a DSLR will still be much better than one made with a point and shoot camera. Shooting bursts, as in bird photography allows for more shots using JPEG than Raw. R files, bring larger, take longer to save to the memory card. If you shoot in the JPEG format, I recommend using the highest quality settings, lowest ISO and presets for conditions in your camera ( i.e. cloudy, sunny etc.).

Mt Hood, Oregon © Jack Graham Photography

 

SO   ?………..Do some professional photographers shoot in the JPEG format? Yes. Can JPEG images be made with enough quality to be published? Yes. The bottom line is this. If you are printing your work, learn to work with RAW and become proficient in your processing , the benefits outweigh shooting in JPEG. If you are shooting small images for the web, not concerned with printing, or publishing larger images (more than 8 x 10’s) the JPEG format offers a quicker processing time.

Why shoot RAW?

1) Ability to change the exposure, saturation, sharpness, curves, etc with less quality loss than you’d experience with JPEG

 2) Maximum control in post-processing

Why shoot JPEG

1) Smaller file size allows you can fit more on a memory card (usually twice as many), and you can download images faster to your computer

2) Ability to shoot significantly more shots in a burst ( good for bird photography )

NOTE: Some cameras can be set to capture images in both RAW and JPEG formats at the same time. There may be times you want to immediate evaluate an image and use the RAW converter later to optimize your final results. ______________________________________________________________________________________________

                                                                RAW                                                                                                                                  JPEG

 RAW JPEG FORMAT              proprietary                                                                                           by camera manufacturer Standard easily readable

BIT RATE                                    at least 8 bits up to 12+                                                                       exactly 8 bits per color

COMPRESSION                         uncompressed                                                                                      compressed

FILE SIZE                                    uncompressed 12MP camera=12mb files                                   small file size (8MP Camera files=1-3mb file)

 DYNAMIC RANGE             Higher dynamic range( better highlights & shadows)              lower in dynamic range

SHARPNESS                              Not as sharp                                                                                               higher in contrast

PRINTING                                Not ready for printing, must be post processed                         immediately ready for printing or web posting

CORRECTION                       Read only some                                                                                        JPEG’S ready for print, web right out of camera

DATA LOSS                           No loss when processed into a TIFF, PSD file                               JPEGS loose data each time an edit is made no matter how minor

 WHEN FILE EXTRACTED FROM CAMERA     must be post processed                                        already processed by the camera

 REFRESHING BUFFER IN CAMERA    slower than JPEG                                                               Faster thanRAW

 RAW POST PROCESSING LOSS None                                                                                                         more than RAW, especially in exposure

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