I have replaced the old web pages for the ski mountaineering trips that I did in the 1990’s. The structure is different, including new gallery layouts with proper captions for each picture. There are also quite a few new black and white photos. I also carried a small 35mm compact film camera for all but […]

Sekonic Light Meter758

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With only 10 shots on a roll and bracketing of 2 negatives to each shot bringing it down to 5 shots a roll I need to know I have the shot when I press the button, that’s why I use the Sekonic meters. I mainly bracket in case there’s a defect on the negative because of processing or coating faults not because of any uncertainty over exposure.

Sekonic Light Meterused

I have pulled together a short talk of about 18 minutes to show a range of things that are possible in the darkroom given a bit of time, patience and practice.

Jun 10, 2024 — Lightpath's acquisition of assets from United Fiber & Data covers connections between New York City and Ashburn, Virginia. #pressrelease.

SekonicL-308X

I have replaced the old web page for the 6 day Bernese Oberland ski mountaineering trip that I completed in 1995. We had bad weather for several days but overall it was a good trip for photography. I changed the layout and added lots of new photos, both black and white and colour. The colour […]

Custom lightsheet microscope with two-photon excitation. Detailed configuration upon request (contact Dr. Stephan Junek. Head of the Imaging Facility).

Sper Scientific's LED Light Meter compensates for the wide variety of color temperatures available in modern LED lighting. Unlike standard LED Light meters ...

Sekonic light meterVintage

Safety Goggles, UV · For ultraviolet and glare protection · One-piece replaceable amber-tinted plastic lens, which screens out ultra- violet radiation and ...

I use the spot meter on the narrow zoom setting (why did Sekonic put anything else on the 508 meter?) and point it at light shadows. These are areas where I want to keep full detail. I dial in the filter adjustment (for the coloured filters that I screw onto the front of the lens to change various tones in the image) as needed before taking any readings. The Ilford FP4 film is rated at the full film speed of 125 ISO and it  gets normal development in the processing. This gives me pretty easy negatives to print in the darkroom, usually just the 2 basic split grade exposures (one low contrast and one high) and maybe some burning in of the sky. That’s it, I never over-print my images and I like to see detail everywhere but with good overall contrast.

The Oxford city shot was taken in November 2012. I needed some Oxford images to balance some Cambridge ones for my book City Light on cities around the world that came out in March 2013. I had just 4 hours in Oxford to get the shots that I needed so I had to work fast and know my exposures were spot on. Sunlit light coloured stone presents similar exposure problems to sunlit snow in that if the meter is pointed straight at it the reading will give under-exposed negatives. In this example of the Radcliffe Camera building I metered off the shadowed walls on the left, not the deepest shadows in the doorways but the lighter areas of the walls. This gave good details in the darker areas as well as in the highlights. The sky was just darkened with an orange filter I didn’t need to do anything else in the darkroom.

While invisible to the naked eye, when used with night vision optics, or an Infrared camera, this 20" Infrared LED bar lights up the night for hundreds of yards ...

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I mostly use a Sekonic L-508, because it’s smaller and lighter, but also have an L-758D as a backup. They both go on all my photo trips with me. I’d be lost without them! I have used Sekonic meters for nearly fifteen years now and use them all the time, never the camera meter.

I changed my display yesterday in Gallery in the Gardens in Pavilion Gardens Buxton. Several new hand-printed darkroom silver gelatin pictures as well as lots of small mounted darkroom prints at £5 and £15. I’m still being very cautious because of Covid-19 so it’s been a long time since it was last updated, it was […]

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Are you searching for LED police lights, or other emergency vehicle lights? SpeedTech Lights has all types of emergency & warning light bars for sale.

A compound light microscope usually has three objective lenses. It also has an ocular lens where the eyes are placed in order to view the specimen. Each ...

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I have pulled together a new gallery web page for the trek I did from Glasgow to Cape Wrath over 3 Summers 2003-2005 with friends. Lots of black and white photos and maps of the route. Here’s the link: https://www.davebutcher.co.uk/glasgow-to-cape-wrath-trek-including-west-highland-way/https://www.davebutcher.co.uk/glasgow-to-cape-wrath-trek-including-west-highland-way/

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Choose from our selection of light pipe, including over 150 products in a wide range of styles and sizes. In stock and ready to ship.

A video and illustrated article covering 6 different enlargers for printing black and white negatives on Ilford Multigrade variable contrast papers.

This shot was taken at McClure Pass, between Telluride and Aspen in Colorado. Sunlit snow with shadow areas in the shot is always a difficult subject. I metered off the tree trunks in light shadows. It was quite a tricky shot to take as the snow was a few feet deep and didn’t support my weight. This meant I had to crawl over the snow to spread my weight, then put the tripod up, camera on top, meter and then check the composition by trying to look through the viewfinder without sinking into the snow. After a few goes I managed it without moving the camera!

The ZIVA Light Engine from Lumencor was made for structured illumination microscopy, stochastic optical reconstruction microscopy, and other super-res.

It was a pleasant surprise to get an email from photo journalist Damien Demolder asking if I would like him to do a 6 page article on me for Amateur Photographer magazine in the UK. I had previously met Damien for chats a couple of times at the Focus on Imaging exhibition at the NEC […]

The lens focuses light rays on the retina in the back of the eye. If your eyeball is too long, the rays will focus in front of the retina, causing myopia ...