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08-25-2019, 03:27 PM - 7 Likes   #25156
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08-25-2019, 04:13 PM - 6 Likes   #25157
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Katelyn 77mm Ltd f1.8 - ISO 1600 f1.8 @ 1/250th
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08-25-2019, 04:34 PM - 4 Likes   #25158
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QuoteOriginally posted by BruceBanner Quote
Carpet Python.




Did you take him home with you Eddie?

---------- Post added 08-25-19 at 19:38 ----------

Peepers hanging out on my poncho liner looking at my Litra LED light. She is fascinated with it.
[IMG][/IMG]
And Overhead.
[IMG][/IMG]
Then a few bees while out and about.
[IMG][/IMG]
[IMG][/IMG]
All PP in DxO.
08-25-2019, 05:06 PM - 8 Likes   #25159
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Paul, K-1, Sigma 85mm f1.4.



08-25-2019, 06:17 PM - 1 Like   #25160
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QuoteOriginally posted by Racer X 69 Quote
It is a 1948 Adams 412 motor grader. The engine is an International Harvester UD14 engine is a 461 cu.in. 4 cylinder that has 303 lbs torque at 68.5 hp. Designed to be started on gasoline, and then once warmed up switched over to diesel.
I found a great description of how this engine is started and run, and a brief description of diesel engines and the methods devised to get them started.

QuoteQuote:
In the early days of diesel engine design every manufacturer had to devise a way of getting the diesel engine to start when it was cold. Some methods that were tried, included heated steel plugs that were heated red hot and dropped into the combustion chambers before the engine was started. Pony engines were used by Caterpillar, John Deere and others, that would be started and run on gasoline, they shared a common water jacket with the diesel engine and the gasoline exhaust manifold was usually siamiezed to the intake manifold of the diesel engine. This allowed an unlimited amount of cranking power and the longer the engine was being cranked the warmer the diesel engines air intake was heated. Cummins and others used a compression release handle that was used to lower the compression during the initial starting rotation, then as the engine was rotating at starter speed the compression release handle was dumped and the compression was increased. The inertia of the rotating crankshaft and flywheel helped to spin the engine to a running speed. Other manufacturers used electric glow plugs in the combustion chambers, and grid heaters in the intake manifold. Still others used a nozzle to spray a shot of fuel in the intake manifold that was ignited and the burning fuel and air mixture was pulled into the rotating engine.

International Harvester used a system on the UD 14, that starts on a complete gasoline engine system and then when the engine is warm enough the compression is increased and the fuel injection pump injects fuel into a warm and running engine. When these engines are set to the starting position ( gasoline position ) the engine has a distributor and spark plugs that fire a fuel mixture that is delivered by a carburetor and intake manifold. The engine is started and runs on gasoline. When the running engine is warm, the engine is switched to the ( diesel position ), at which time several things happen.
( 1. )The separate gasoline starting valves are closed, and the compression is increased.
(2. ) The diesel fuel system begins injecting fuel into the combustion chamber.
( 3. ) The gasoline intake manifold flappers are closed.
( 4. ) The ignition current to the distributor is cut off by the switch in the front end of the intake manifold.
( 5. ) The fuel to the carburetor is stopped by a lever that raises the float.
Of note is the Cummins diesel engine in my 2001 Dodge Ram 3500 pickup uses the heated intake manifold grid for starting, the Kubota diesel engine in my L260P compact tractor uses a combination of compression release and glow plugs to start, and the diesel engine in my Kubota riding lawnmower uses glow plugs before cranking to start when cold.
08-25-2019, 08:42 PM - 1 Like   #25161
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QuoteOriginally posted by SSGGeezer Quote
Did you take him home with you Eddie?

---------- Post added 08-25-19 at 19:38 ----------

Peepers hanging out on my poncho liner looking at my Litra LED light. She is fascinated with it.
[/IMG]
And Overhead.
[/IMG]
Then a few bees while out and about.
[/IMG]
[/IMG]
All PP in DxO.
I left the nope rope exactly where it was!
08-26-2019, 06:01 AM - 5 Likes   #25162
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Switched to foreground pod in this one...

smc PENTAX-DA* 300mm F4 ED [IF] SDM /4.0 300.0 mm 1/1250 iso320
08-26-2019, 06:37 AM - 9 Likes   #25163
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Golden Mantle ground squirrel.



08-26-2019, 07:59 AM - 12 Likes   #25164
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International Dog Day

I have not been feeling up to photography of late, but I couldn't let International Dog day pass without a portrait of little Ripley.

K1 + DFA 70-200 1/500 f4.0 ISO 200

08-26-2019, 10:57 AM - 7 Likes   #25165
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Here's something a little different. Shot with a D FA* 50 1.4.
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PENTAX K-1 Mark II  Photo 
08-26-2019, 11:15 AM - 6 Likes   #25166
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QuoteOriginally posted by pschlute Quote
K1 + DFA 70-200 1/500 f4.0 ISO 200
Double like !

FF Mode • 100 ISO • Pentax DA* 55mm F1.4 SDM


FF Mode • 100 ISO • Pentax FA 35mm F2 AL


FF Mode • 100 ISO • Soligor C/D Wide-Auto 20mm f:2.8
08-26-2019, 11:33 AM - 11 Likes   #25167
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QuoteOriginally posted by SSGGeezer Quote
Did you take him home with you Eddie?

---------- Post added 08-25-19 at 19:38 ----------

Peepers hanging out on my poncho liner looking at my Litra LED light. She is fascinated with it.
[/IMG]
And Overhead.
[/IMG]
Then a few bees while out and about.
[/IMG]
[/IMG]
All PP in DxO.
SSGGeezer,

Nice shot of the bee on Lupine. Here's what I captured when I was last "out & about":
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PENTAX K-1  Photo 
08-26-2019, 11:48 AM - 8 Likes   #25168
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A sailing boat at sunrise, mirrored over the perfectly still water surface [pixel shift exposure, 28mm, f/11].


Perspective view over the shore of the flat lake in the softness of the morning light. [28mm, f/16]

---------- Post added 26-08-19 at 21:27 ----------

QuoteOriginally posted by BruceBanner Quote
Carpet Python.
It's the kind of shot I prefer to do with my 150-450, eventually adding a tele-converter to keep in the comfort zone with this guy

Last edited by biz-engineer; 08-26-2019 at 12:23 PM.
08-26-2019, 12:43 PM - 9 Likes   #25169
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Here is some shots from the weekend

HD DA 10-17




FA 31







DFA 70-200








08-26-2019, 01:05 PM   #25170
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Pentax K1 + FA 80-320/4,5-5,6 (silver)

ISO : 800
shutter: 1/1250 sec.
aperture: f 8
in 35mm: 98 mm



Pentax K1 + FA 80-320/4,5-5,6 (silver)
ISO : 1250
shutter: 1/1250 sec
aperture: f 8
in 35mm: 170mm

Last edited by mbukal; 08-26-2019 at 01:32 PM.
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