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Forum: Railroad Photography Forum 07-02-2018, 04:46 PM
Replies: 9
Views: 624
Posted By Mark Gayman
I understand that now. After reading past "during...

I understand that now. After reading past "during midday hours during the summer" in the reject reason, I see that they explain things further:

"High sun is considered to be present when there are...
Forum: Railroad Photography Forum 07-02-2018, 03:48 AM
Replies: 9
Views: 624
Posted By Mark Gayman
At 4 PM, is a high sun angle possible? They might...

At 4 PM, is a high sun angle possible? They might be judging by the amount of light hitting the undercarriages or the shadow that the rail head makes on the rail web.
Forum: Off Topic Forum 04-05-2015, 04:47 AM
Replies: 1
Views: 2,181
Posted By Mark Gayman
If it's metal below the orange paint, I would say...

If it's metal below the orange paint, I would say it's primer.
Forum: U.S. Class 1 Railroad Discussion 02-01-2015, 02:50 AM
Replies: 4
Views: 8,435
Posted By Mark Gayman
Thumbs up This life saving event is very much like one from...

This life saving event is very much like one from the life of Casey Jones.
Forum: Railroad Photography Forum 02-01-2015, 01:49 AM
Replies: 124
Views: 28,136
Posted By Mark Gayman
Question Press credentials for contributors

I have thought that if RP could issue "press" credentials to US contributors, we might have some legal edge to make some authorities think twice about interfering with 1st Amendment rights during the...
Forum: Railroad Photography Forum 02-01-2015, 01:04 AM
Replies: 27
Views: 4,598
Posted By Mark Gayman
Post Elevation plus fallen flag can improve the...

Elevation plus fallen flag can improve the outcome.

http://www.railpictures.net/viewphoto.php?id=360191

http://www.railpictures.net/viewphoto.php?id=217987
...
Forum: Off Topic Forum 05-03-2014, 03:48 AM
Replies: 3
Views: 1,927
Posted By Mark Gayman
The formula for kinetic energy is k = 0.5 * m *...

The formula for kinetic energy is k = 0.5 * m * v**2 [one half m v squared]. Bullets gain large kinetic energy from large v. Trains gain it from large m. Either can do damage.
Forum: Digital Photo Processing Forum 02-07-2013, 04:56 AM
Replies: 1
Views: 2,051
Posted By Mark Gayman
Here is a possible cropping that looks better, to...

Here is a possible cropping that looks better, to me at least. I also boosted saturation and contrast while lowering brightness to improve the appearance.

Does the scanning software have a...
Forum: Railroad Photography Forum 01-21-2013, 02:27 AM
Replies: 6
Views: 690
Posted By Mark Gayman
I see a crop like the attached. The ratio is...

I see a crop like the attached. The ratio is 12:8, which I think is needed to show the whole train. The train may still be too low in the frame.

I also increased the blue saturation to improve the...
Forum: Railroad Photography Forum 01-20-2013, 04:34 AM
Replies: 6
Views: 690
Posted By Mark Gayman
It definitely needs sharpening. I brought it into...

It definitely needs sharpening. I brought it into GIMP and adjusted the image with a simple sharpen of +20 and it looks much better. I agree with the previous post--it needs cropping off the top.
Forum: Railroad Photography Forum 01-20-2013, 04:21 AM
Replies: 2
Views: 536
Posted By Mark Gayman
I can see two things that might be at issue: 1)...

I can see two things that might be at issue: 1) the switch stand in the lower right corner is distracting, 2) a shadow of a light pole falls over the engineer's side of the cab and across the...
Forum: U.S. Class 1 Railroad Discussion 08-05-2012, 02:41 AM
Replies: 3
Views: 4,236
Posted By Mark Gayman
According to my calculations (231 cubic inches in...

According to my calculations (231 cubic inches in a gallon / 0.005 inches thick) / 144 square inches in a square foot, one gallon of paint applied to a uniform thickness of 0.005 inches will cover...
Forum: Digital Photo Processing Forum 08-05-2012, 02:21 AM
Replies: 2
Views: 1,935
Posted By Mark Gayman
Question A crop like this might work (1200x800 aspect...

A crop like this might work (1200x800 aspect ratio), if you want to shoot from the same location:
Forum: Railroad Photography Forum 07-21-2012, 04:56 AM
Replies: 31
Views: 6,815
Posted By Mark Gayman
Another thing to watch is the JPEG compression...

Another thing to watch is the JPEG compression quality setting when you save the image for upload. I always save it at 100 in GIMP. Anything less than 100 will produce a smaller file with some loss...
Forum: Off Topic Forum 07-21-2012, 04:43 AM
Replies: 2
Views: 2,960
Posted By Mark Gayman
There's a saying in the software industry, "Never...

There's a saying in the software industry, "Never buy a product whose version number ends in .0"--there are always a flood of bugs when a software vendor releases a major upgrade to a product. The...
Forum: Railroad Photography Forum 07-04-2012, 07:53 PM
Replies: 1
Views: 799
Posted By Mark Gayman
It looks to me like it needs a touch more...

It looks to me like it needs a touch more saturation and contrast. In GIMP, +10 on the sliders for both made it look good to my eyes. The red on the nose of the engine might bloom, so less than +10...
Forum: Railroad Photography Forum 06-07-2012, 05:24 AM
Replies: 2
Views: 739
Posted By Mark Gayman
Maybe something like this. I cropped it at a 12:8...

Maybe something like this. I cropped it at a 12:8 ratio (after rotating the original about 0.75 degree CCW), boosted saturation a bit, and sharpen it. The bridge and the mild glare on the left of...
Forum: Digital Photo Processing Forum 05-26-2012, 04:06 AM
Replies: 21
Views: 7,753
Posted By Mark Gayman
Good point. A Tamrac video says it's good for up...

Good point. A Tamrac video says it's good for up to three pounds. Perhaps lightweight is a double entendre ;-)
Forum: Digital Photo Processing Forum 05-25-2012, 10:48 PM
Replies: 21
Views: 7,753
Posted By Mark Gayman
Here's one that boasts a super lightweight design...

Here's one that boasts a super lightweight design and 5-seconds to set up:

http://photojojo.com/store/awesomeness/folding-tripod/

I do not have one of these so I cannot provide a first-person...
Forum: Off Topic Forum 05-24-2012, 03:19 AM
Replies: 4
Views: 3,711
Posted By Mark Gayman
Well, many of today's rechargeable batteries have...

Well, many of today's rechargeable batteries have an integrated circuit (IC) in them that is commonly called the "gas-guage". The best gas-gauges measure and report the charge going in and out of the...
Forum: Railroad Photography Forum 05-15-2012, 04:44 AM
Replies: 3
Views: 799
Posted By Mark Gayman
You're welcome, glad to see it in the database.

You're welcome, glad to see it in the database.
Forum: Railroad Photography Forum 05-14-2012, 05:58 PM
Replies: 3
Views: 799
Posted By Mark Gayman
Looks to me like it needs a moderate increase in...

Looks to me like it needs a moderate increase in saturation and a small increase in contrast. The sky and the yellow paint look weak.
Forum: Digital Photo Processing Forum 05-13-2012, 12:23 AM
Replies: 4
Views: 1,616
Posted By Mark Gayman
Looks to me like a small boost in saturation and...

Looks to me like a small boost in saturation and contrast will improve it. Composition is very good.

As you increase the saturation, watch the river water, at a certain point the brown will pop.
Forum: Off Topic Forum 04-16-2012, 01:28 AM
Replies: 4
Views: 3,514
Posted By Mark Gayman
Check the Wikipedia article on Air Rights -- it...

Check the Wikipedia article on Air Rights -- it makes interesting reading. Back in the 1950s or 1960s, IIRC, an insurance company wanted to build a skyscraper in Chicago over the Illinois Central's...
Forum: U.S. Class 1 Railroad Discussion 04-16-2012, 01:19 AM
Replies: 4
Views: 1,931
Posted By Mark Gayman
Look at what's posted on...

Look at what's posted on http://www.yardlimits.com/ -- it's a site where employees of many railroads post all kinds of questions and information. You don't need to be a current RR employee to join.
Showing results 1 to 25 of 88

 
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