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To test the backlight I made a special arrangement. A glass plate containing a pattern. There is also a portion which is translucent. This allows me to test the influence of the background module. A part of the foreground exposure is in fact reflected. With different masks I measured this effect. The results will follow.
Testing a new FPP bw emulsion.
You can see Leslie Lazenby's testshere:
www.flickr.com/photos/65448995@N05/albums/72157698701296721
Shot at 400 iso / no filters
Canon AE-1 camera (Aunt Linda Edition)
Canon 50mm f1.8 lens
Home processed in (exhausted) Kodak Xtol
Epson v700 scan
I met Freska today to discuss ideas for our upcoming shoot in a few weeks. During our meeting we did a few test shots to determine what type of lighting we would be using for the shoot. She works for FM 99.7NOW radio station here in San Francisco and is currently training for a Figure Competition that will take place in 3 months. Despite having our meeting right after her vigorous workout sessions that she has on the daily, she was excited and full of energy to have our meeting. She's such a nice person, I can't wait to work with her in a few weeks.
I love this shot taken of a Ford Anglia and a Morris Minor being used for driving tests in Valetta in August 1988
Nikon D600 + Tokina 11-16 f/2.8
Test du capteur donc accesible en full size (Pas de grosses retouches, Dérawtisé avec LR 4.2)
© Landry NOBLET
Just some test shots with my new Canon 80D. Taken near my home in North Lincolnshire. Not much to take pictures of around here, as the ground is so flat! Light's terrible. But I tried to make do!
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.
Electronic gain for R,G1,G2,B channel of D810a Bayer matrix is measured following approach described in the article of Craig Stark "Signal to Noise: Understanding it, Measuring it, and Improving it: Part 3 - Measuring your Camera".
Electronic gain is different in R,G1,G2,B channels, the highest in B and the lowest at R.
Relations of gains for different channels don't change with ISO.
ISOs for that gain is equal to one is calculated for each channel. According to results, there is no reason to use ISO higher than 600 (say ISO 640) in astrophoto. Above it we will get truncation of the dynamic range of the shot without any benefit in signal or S/N ratio.
Le test Nikon Z 5 complet avec mon avis, des exemples de photos, avantages et inconvénients de cet hybride plein format, à qui il s'adresse
Nikon D600 + Sigma 70-200
Test du capteur donc accesible en full size (Pas de grosses retouches, Dérawtisé avec LR 4.2)
© Landry NOBLET
Catalog #: 10_0016021
Title: Atomic Bomb Test
Date: 1946
Additional Information: Bikini Island
Tags: Atomic Bomb Test, Bikini Island, 1946
Repository: San Diego Air and Space Museum Archive