View allAll Photos Tagged testing.
Healey Mills to marsden MGR wagons, nice day for December, with dry rail / good conditions.
Loco ran round at Marsden, train returned to Healey Mills, success.....
Come 1981, when the Woodhead Route closed, these MGR's were a regular sight through Huddersfield, heading for the Fiddlers Ferry power station, at Warrington.
Often overloaded, and on a wet rail, chaos usually reigned for many an hour, as they failed to make the uphill struggle to Marsden. Stranded passengers everywhere, while their trains were diverted up the "Lanky" and just a few local stoppers to Leeds with no taxis / buses, or backup plan, it was awful, and it happened regularly.
A class 37 was on standby in platform 7, when this photo was taken, and 56 006 had a brake van marshalled, at each end of the wagons.
Looking at this now, it seems as if BR had the woodhead route stitched up already, even though it did last until 1981.
Testing different lenses for zoom and ease of use.
this one is fuzzy to focus.
The SEL55210 is easier, autofocus and more f stops
See the EXIF on each image.
Tuesday I bought a new set of markers. I'm testing them today along with a few other pencils and pens that I bought.
Faber-Castell PITT Artist brush pens on Canson Mix Media paper.
Catalog #: 10_0016100
Title: Bomb Test
Date: 1920-1929
Additional Information: Aerial Bombing tests on Ostfriesland by Billy Mitchell
Tags: Bomb Test, Aerial Bombing tests on Ostfriesland by Billy Mitchell, 1920-1929
Repository: San Diego Air and Space Museum Archive
Nikon CFI Plan 10x/0.25NA 10.5mm WD objective mounted on Canon EF 100mm f/2.8L Macro IS USM + Canon 5 D Mark II. This combination yields 5:1 on the sensor, i.e. 1 mm on reality projects to 5 mm on sensor.
I used continuous lighting with two 32 W full spectrum daylight lamps (CRI 97).
Left:
focus step size 0.01 mm
stack size 50
MLU ON
EFSC ON (silent mode = 1)
wait after stepper movement = 1s
IS (image stabilizer) ON
Right:
same as left but
IS OFF
There is really no difference between the pictures. So whether IS is On or OFF makes no difference in my setup.
Technically using Image Stabilizer together with camera mounted on tripod is quite complicated. Canon's own doc. pages have this info:
Using IS with a tripod
When using certain early models of IS lenses with a tripod it was necessary to turn off the IS function. This is because of a phenomenon known as ‘Shake Return’. Shake Return occurs when the IS system tries to correct vibrations to which the system itself contributes. When the IS lens sits on a tripod, the IS detection gyros pick up any tiny vibrations or movement; these might be caused by the tripod being knocked, or the photographer adjusting a camera setting.
The IS system then swings into action to correct that movement. The movement of the IS lens group causes its own minute vibration, which is in turn detected by the movement sensor, which triggers another correction. This ‘feedback loop’ can continue endlessly, resulting in the addition of unwanted blur to images that would be sharper if the IS function was switched off.
Canon addressed the ‘feedback loop’ in later model IS lenses by introducing an algorithm to the IS detection system to automatically recognise when the lens is mounted to a tripod. When these lenses are mounted on a tripod and the shutter button is pressed halfway, the IS system kicks in and the image in the viewfinder can be seen to go through a very slow vertical shift for about one second.
If the shutter button remains depressed halfway the IS system detects the lack of motion and automatically switches into a special mode. In this mode IS detects and corrects for mirror slap and shutter movement at slow speeds, but not for ‘normal’ lens shake. There is no advantage to be gained in turning off the IS function or locking the mirror prior to exposure.
The early model lenses which do not have this automatic function and which should have IS turned off (ie lock the IS correction lens group in place) when mounted on a tripod include the following lenses:
•EF28-135mm f/3.5-5.6 IS USM
•EF75-300mm f/4-5.6 IS USM
•EF100-400mm f/4.5-5.6L IS USM
•EF300mm f/4L IS USM
Even though IS ON/OFF did not make a difference in my test I think it is better to have IS turned OFF when stacking with microscope objectives.
Testing off-camera flash (CLS) with old Nikon D70S.
85mm @ f1.8 + edit in GIMP
SB600 Flash with Omni-Bounce
Here's my attempt to capture the Milky Way. It's definitely not the photo of the year, but it's a first step to achieve better results though :D
I love this shot taken of a Ford Anglia and a Morris Minor being used for driving tests in Valetta in August 1988
A lot harder than I thought. Didn't think this would take more than an hour to accomplish. Based on the obvious bisector; while the previous, more narrowed one was not. As much as I'd prefer the earlier narrowed ver/variation, it seems to require more figuring out (probably something with the inner creases). So to make things easier, ill to go back to it in the future with a larger sheet.
This is based on same concept as all my other models, if you've folded them, any amount of points can most likely be made up to infinity. But can some points be eliminated, shapes be merged and structures be increased? Well see. .
Before giving an apple to Sister, in needs to be tested.
Life in a children's home, one of the old photographs now auto colourised.
I was at the Nikon showroom and spent a few minutes trying out the new D7100. The cropped shots above (of a poster) were taken at ISO 800 - 6400. Viewed at 100%, the sensor noise becomes more apparent at ISO 3200 and above.
Click here to see my D7000 ISO Test
© 2013 CP Cheah. All rights reserved.
Just a test. The torso and face are just printed on plain paper and taped on. I bought a small bottle of purple paint from a hobby store last night, but I'm afraid it's too light. The only purples they had in darker hues were glittery (for model cars).
However, I think there was a nice effect achieved when I scraped off some of the lines in the hair - perhaps a cartoony feel?
This shot shows a cut into the schnitzel to test for doneness and to taste test as well.
It was delicious. ☺
Le test complet du Nikkor Z 85 mm f/1.8 S est disponible ici :
www.nikonpassion.com/test-nikkor-z-85-mm-f18-s-objectif-p...
Le test complet du Nikkor Z 85 mm f/1.8 S est disponible ici :
www.nikonpassion.com/test-nikkor-z-85-mm-f18-s-objectif-p...
Waiting its turn at the test centre is 2912 D912NDA
Thoroughly enjoyed driving this beast both at HY and on this day.
In this test, you can see the A circle begin to clump. This person is probably type A, but the test needs more time to complete. You can find additional images of this laboratory procedure at www.anatomycorner.com