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I use ROR optical cleaner, I have found this to be the best if you can't get that Zeiss spectacle cleaner is also very good both do not leave any residue.

All good stuff, thank you Vaughn and all who have taken the time to share your knowledge.

Thank you for the heads up on wd2h+ I found the formula for wd2h, has the WD2H + formula ever been published?

Which 4x5 sheet film works well in low contrast light. I am considering doing a little project making photographs of tree roots. In the poor light I will have scenes with a subject brightness range...

Hello Drew, yes, the answers have helped me to come to the conclusion that I have to get more organised. I have now got dedicated bags for 35mm, med format and large format equipment. I have made a...

I will go with the dedicated bag idea, anyone use a Lowe pro flipside?

Hi, do you keep a checklist of the contents of your camera bag, if so have you got one in a file you could share?
Thank you all in advance

Lloyd you beauty, that is exactly what I was hoping for, thank you!

Anyone made their own wooden tripod for 4x5 camera? Best options for economy of work, strength and stability.

The tricky bit is choosing a highlight that will not appear as paper white in the print!

Is there a way of calculating how much reduction in development time is needed to counter the increased contrast when using long exposures?

Would it be possible to mark graduations on the focusing wheel to show the length of bellows draw. As in focus Far note position of focus wheel to 12 o'clock, focus Near, note rotation of focus...

https://www.theguardian.com/artanddesign/2020/oct/31/from-daguerreotypes-to-glass-plates-australias-oldest-images-photo-essay

Tripods are of course necessary but heavy, I reduce as much weight as I can where possible. The one thing I need to look at is my rucksack, it is a 15 year old Berghaus that is heavy but comfortable....

I cut a little bit of weight during lockdown, I have managed to lose 14lbs of blubber and increased my fitness. That should make carrying my large format kit easier for me. Need to lose another half...

Yes I believe a lightweight tripod is an essential bit of kit. Reducing the weight of my rucksack prevents blisters on my feet and aches and pains from the straps. I am talking about 3-4 day hikes...

Top info. Thank you.

125mm,135mm or 150mm.

Hi, please recommend a small lightweight lens for back packing, I will be using a Chamonix 4x5 and making prints no larger than 12x16.

Run a graphite pencil around the retaining ring thread, it will prevent it from sticking next time, works on filter rings as well.

Take that bent rod off and whack it straight with a hammer, roll it on a flat surface to check it. Keep the springs from losing tension by holding them in their most relaxed position (use strong...

Just found this thread, love this photograph, I really like that the water looks like it is flowing (not just burnt out smoke). Great detail and choice of scene many people would have walked on by...

Thank you again Doremus that is a well written set of instructions.

Clear as gin, thank you!

Hi, Doremus, would you consider writing a primer on using asymmetrical tilts? I found your file, dealing with base tilts a great help, thank you.

Fuji gsw6x7iii (more shots per roll than 6x9) yellow/green filter and a polariser, lots of asa 400 film a light tripod or even a Gorilla pod and a Sekonic L308 light meter. Carry it in a chest pack...

If you decide to take a shutter apart take plenty of photos and make sketches and keep notes. I make drawings on corrugated card and poke holes in the card (with a needle),where the screws go. Then...

I have worked with machinist at British Steel that would have made a whole new lens casing in exchange for a packet of cigarettes, on the night shift ;-). During WW2 a local lathe turner called...

If, the lens was worth saving. The rust could be carefully cleaned off with a fine brass wire brush and wet and dry paper. The metal could then be treated with a product called Kurust, then painted...

Fair point, but if it was mine I would remove all the ferrous metal and replace it with a new brass sleave. I suspect the iron ring may be hiding a split or dent in the original casing. I would use...

Not really dangerous, a skilled turner can easily work to within 1/1000" . It would be possible to take very fine cuts until the iron and solder was cut away.

Put it in a metal working lathe, and turn off the metal you don't want.

Xerapol acrylic scratch polish is very fine and works very well on perspex etc. Toothpaste is also a very fine abrasive.

I store my shutters set on the B setting is this the correct thing to do?

As the detective "Columbo" would say, "just one more thing", when I tested my shutter speeds I fired the shutter 6 times at each speed and took an average. I noted that there was no appreciable...

Thank you all for the input. My shutter speed tester measures speeds accurate enough for me. It confirms what I see in my negatives. I find the speed tester gives me some idea of what to expect, (how...

Nothing to worry about then :)

I have four lenses that I have tested with a shutter speed tester. Most of the shutter speeds are as they should be apart from the 1/250 and Higher speeds. Is it common for the higher speeds to be...

Buy some Delta 400.
Shoot Delta 400 at EI500 develop in DDX

http://www.darkroomdave.com/tutorial/process-times-for-ilford-fp4-sfx-and-delta-400/