Portsmouth Long Exposure #2
Svenedin

Portsmouth Long Exposure #2

Another shot testing the Ilford film reciprocity numbers. Again no tripod so not nicely composed. Pre-war camera.
Location
Portsmouth, Hampshire, UK
Equipment Used
Zeiss Ikon Super Ikonta A520 6x4.5
Exposure
About 10 minutes, f32 using "T" setting
Film & Developer
Ilford HP5+; Xtol 1+1
Paper & Developer
Fotospeed RCVC 8"x10"; Tetenal Eukobrom
Lens Filter
None
Digital Post Processing Details
Dust removal
I remember seeing something of Ilford revising their numbers, but didn't pay close attention. Here, it looks like you had figures that extended beyond their prev. info & it looks good. Composition, exposure - both good. Keep experimenting - they're a treat to see.
 
Thanks. I did not have the correct thread for this very old camera so I could not use my tripod. I had to balance the camera on a wall so I could not get the composition that I really wanted. Portsmouth is a busy port so passing ships are inevitable but what I was after was the boiling cauldron of water illuminated by moonlight. The tides are very large in Portsmouth and this was one day before full moon.

The info is here:

https://www.ilfordphoto.com/wp/wp-content/uploads/2017/06/Reciprocity-Failure-Compensation.pdf
 
Svenedin, Thank You! The factor approach is much more useful than their prior graph. I usually populate a spreadsheet w/ values through about 15 min (indicated) and keep a print in the bag so I don't have to carry a calculator.
 
Yes this uses a power factor to calculate the corrected from the measured exposure. If you have an iPhone, access the calculator app. Turn the iPhone in landscape orientation and a scientific calculator is revealed.
 

Media information

Category
Experimental Gallery
Added by
Svenedin
Date added
View count
842
Comment count
4
Rating
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Image metadata

Filename
Ilford delta12500073 clean small.jpg
File size
256.6 KB
Date taken
Sat, 09 September 2017 10:39 AM
Dimensions
850px x 669px

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