Ugly Hedgehog - Photography Forum
Home Active Topics Newest Pictures Search Login Register
Posts for: Brent Rowlett
Page: <<prev 1 2 3 4 5 6 7 8 9 ... 32 next>>
Mar 29, 2018 16:44:35   #
rehess wrote:
Reply #73: Given that the answer to the OP is 'yes', what would be accomplished by making a JPEG that isn't accomplished by looking at the screen in front of your nose???????


No you always convert your file to a DNG or PSD. They you can go back and change your edit if you wish. Converting the image to JPEG stops the process, and you must start all over again from the original image. And save the RAW image with it.
Go to
Mar 29, 2018 15:48:46   #
Catnlion wrote:
So if I shoot RAW and do something in PP to it then do I have to make a JPEG out of it to see what the finished product looks like then delete, reprocess, recovert until I save a JPEG I like?


No. I always convert my images to PSD files so that I can manipulate them and not lose the original base image. You can save them in a variety of formats from Photoshop.
Go to
Mar 29, 2018 14:29:16   #
imagemeister wrote:
I am 15 years in printing also - what is the reason for 2x line screen ?? Thanks ....

..


Flexography was usually 60 line screen to 120 line screen although substantial progress has been made with ultra thin photopolymer plates to enable 150 line screen printing. Litho has always been 150 line screen. Pixel data requirement for a 120 line screen or dots per lineal inch has always been a little less than 240 for Flexography and 300 for Lithography. A printing dot on a photopolymer plate cannot be made the size of a pixel. A 1% dot (2pixels) usually cannot hold enough ink to transfer to a substrate like paper or film and the drop out point is usually 3%.
Go to
Mar 29, 2018 10:29:52   #
With 35 years experience with printing most presses print with 120 to 150 line screen...the reason Photoshop has 240dpi and 300 dpi settings (dpi=2x line screen). Most presses have a difficult time holding a 3% dot. So a blowout prints as an ugly white hole or void. People today are spoiled with ink jets and lasers that print with perfect register and 1440 dpi and higher. The real world prints in volume with separated printing plates. That is the reason for rejection of images submitted to Stock Photo and others. You have to know what you are doing and how your images will be printed if you wish to sell photos.
Go to
Mar 29, 2018 10:16:00   #
Longshadow wrote:
Blown highlights in over exposure cannot be recovered, under exposed areas can usually be brought out.


Exactly. If there are no color pixels in the overexposed highlights, there is no software to manufacture them. However with an underexposed image, the color data is there to manipulate, reduce etc. for an image with good detail. Printing presses print a blow out as a white hole-a total disaster and unacceptable.
Go to
Mar 29, 2018 10:02:29   #
gvarner wrote:
My understanding is that what we see in a RAW uncompressed file produced by a camera is its embedded JPEG, processed only by the camera settings that are necessary to produce the image, no embellishments for contrast, clarity, etcetera. What we see in a JPEG file is an embellished compressed-file version processed by the camera's settings. Due to compression (I think), the JPEG file does not contain all the data that the RAW file contains and thus cannot be edited in post to the extent that a RAW file can be edited. For that reason, a RAW file first has to be edited in Adobe Camera RAW (ACR) and exported out as a viewable JPEG or TIFF or whatever format you want for further editing. I'm not sure if ACR is the only relevant RAW editor. There may be others.
My understanding is that what we see in a RAW unco... (show quote)


I shoot a lot of real estate images per day. Using available mixed lighting and bracketed time exposures with a constant f11 aperture, the white balance changes for every room. Especially in low light situations, digital cameras tend to shift the hues to a salmon, orange to yellow cast. I carry a little 8 inch target on a stand and shoot a good exposure for every room prior to shooting the bracket. When viewing raw images in Lightroom CC, placing the picker on the 18% gray color will reveal the exact temperature to sync with the bracket. Spot On color is achieved in every instance. Same for models, weddings etc. Nikon produces flat images with a slight blue cast. Canon is so much better with color out if the camera. I prefer a warmer image out of the camera and for that reason I switched to Canon cameras years ago. At any rate decorators of expensive high end homes are anal about achieving accurate color. I don’t take any changes so Lightroom is paramount. Setting white balance in the camera is time consuming and a pain in the butt. Shooting a little target or Passport Color Checker is the fastest way to accurate color using Lightroom. Shooting JPEGS is difficult to correct with tint filters, and when you have 25 or more images, consistency is key throughout.
Go to
Mar 29, 2018 08:28:32   #
Rongnongno wrote:
Under exposing in any format will enhance the noise*. Over exposure will reduce the noise - IF done properly (ETTR/EBTR) -. Note the under or over exposure does not mean blowing either.

I personally have found that with the newer crop of cameras (D500 and D850) underexposure is less a noise issue than before as with the new invariant sensor technology we need to re-think exposure as a whole.

Newer cameras (Sony/Nikon among others) also have an incredible DR and to challenge one on that aspect is becoming much harder so ETTR and EBTR seems to be less relevant as time passes.

-----
* Same as high ISO
Under exposing in any format will enhance the nois... (show quote)


Shooting RAW, always underexpose the image by one f stop. From experience you will never be sorry when capturing detail is important. Overexposed is trash. You should never have a noise issue with an ISO of 400 and below. If you do, trash your camera and start over with a decent model. Good pros will bracket 3 rapid flash images. This is done to eliminate a blink rather than exposure, but it works for both.
Go to
Mar 29, 2018 07:08:17   #
canon Lee wrote:
Disposable cameras, should be the writing on the wall to look for another market....


Amen brother. And I did :)

One of my wife's fellow teachers got married last year. She was very unhappy with her photos. Wanting the background out of focus and knowing of my editing advertising ability, she asked my wife if I would not mind working with the photos. Getting them last night I was appalled to find that every one of them was out of focus, raccoon eyes because the photographer did not use off camera flash, and just overall flat. If I paid ANY money for this crap I would have sued the photographer for a refund.

She already is unhappy with the photography. I just haven't the heart to tell her the photos are out of focus and not much can be done with them. I am pushing the limits with sharpening at 175 as it is. Certainly they cannot be made into 16 x 20 prints. She wanted to give this picture to her mother for Christmas. From 15 feet my Canon 5DSr and the 85mm f-1.2 lens captures the veins in the whites of the eye requiring editing. It is just a shame there are people out there that are taking money when they don't know what they are doing. At least if you are back lighting your image with the sun, have the sense to use an off camera flash to capture the eyes and facial features.








Go to
Mar 28, 2018 08:19:00   #
martinfisherphoto wrote:
Why ask the question if the answer is obvious??? The only real advantage I have found with shooting Raw is the ability to recover blown highlights that are about 1 stop over my JPEG files. On occasion I still shoot raw+jpeg to see what if anything magical will happen, like shooting raw makes me a better photographer.. It's doesn't in the least amount. I feel sorry for those poor bastards that think shooting raw will somehow make them and their photos float above the rest of us JPEG shooters.. If you ain't got it, Raw won't get it for yeah. A crap shot is a crap shot, is a crap shot........
Why ask the question if the answer is obvious??? T... (show quote)


Highly disagree. If you follow the rule of underexposing your RAW images, you can do wonders with software. An out of focus or blown out image is just trash--sorry you are SOL.
Go to
Mar 28, 2018 06:08:23   #
You will not see any difference because the RAW image is viewed as a jpeg. The difference will be the amount of data contained in the file to manipulate. Also when you bring a RAW image into Lightroom, one is able to see the color temperature value, use a white pick to find the optimum color temperature and adjust multiple images to a numerical value like 3200K or what your white balance target reveals. With a jpeg it is very difficult to adjust hue with the tint sliders.
Go to
Mar 26, 2018 18:44:42   #
billnourse wrote:
Don't have a Bowen or profoto and can't afford one. I have not been able to high speed sync with my Paul Buff. Can with the Canon 600, but I sometimes use multiple lights


I highly recommend you watch Brady’s tutorial. That is why your speed light fires like a machine gun. Beautiful pictures are achieved especially when you have an easy stand or an assistant to hold the light off camera with a pole. No need for expensive filters and multiple lights. Let a light and the sun do the work and at 1/4000 shutter speed hand held with any heavy lens is possible.
Go to
Mar 26, 2018 16:04:05   #
billnourse wrote:
I sometimes have to use ND to balance bright sunlight and fill flash in portraits. When using fill flash you can't just up the shutter speed without getting out of sync.


Yes you can. Check out Scott Brady's tutorial on high speed sync photography. I think it is in the Sekonic series. Fascinating how he can use a 50 watt speed light and 1/4000 shutter speeds to achieve wonderful facial color and blue sky back lit backgrounds. With a 600 watt Profoto or Bowens light it is even easier.
Go to
Mar 26, 2018 14:45:47   #
TheDman wrote:
The original photo didn't contain water, though.


Sorry I would still use my methods for photography I am interested in capturing. Just have no need for longer exposures in peak of day.
Go to
Mar 26, 2018 14:22:47   #
tracs101 wrote:
What about long exposures when the subject is in a brightly lit area? If you check out some images that were the results of ND filters being used you may reconsider.


I would just use faster shutter speeds and f32 with my Canon 90mm T/S lens. Shooting RAW, I have been able to get detail anywhere...ditto with HDR bracketed images. As I said, I have no use for silky unrealistic water. Save the money.
Go to
Mar 26, 2018 09:16:20   #
Shoeless_Photographer wrote:
http://breakthrough.photography/products/x4-neutral-density


Looking at this product, I cannot see the value of using this product. Shooting RAW, I can achieve any combination I want in post. I would rather spend the money on a good quality polarizing filter for my landscapes.
Go to
Page: <<prev 1 2 3 4 5 6 7 8 9 ... 32 next>>
UglyHedgehog.com - Forum
Copyright 2011-2024 Ugly Hedgehog, Inc.