It's not just a centre-vs-edge thing, it's a focused-vs-unfocused variation as well.
Near the edges (well, not the extremes), you can still get a fairly-well focused image, i.e. all the light...
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It's not just a centre-vs-edge thing, it's a focused-vs-unfocused variation as well.
Near the edges (well, not the extremes), you can still get a fairly-well focused image, i.e. all the light...
Mouser should sell you everything except maybe the LCD and Arduino, which I typically buy from eBay. For example, see item numbers 161015559852, 121691768076/311232919649 and 301696345731 (not sure...
While that would be possible, it would be much more expensive than you just buying the parts directly. Shipping stuff to Australia and then onwards internationally is quite costly.
Update: I have added a couple of demonstration videos, which demonstrate simple exposures, test strip generation, multi-step exposure programs, scaling prints, drydown compensation and baseboard...
Yeah, I've had it apart and a good look through it (my initial hypothesis was a poor/ohmic electrical connection) and nothing is obviously where it shouldn't be. I've previously replaced the lamp...
Hey all,
I've got a 504 (pretty old, looks like this) that I've been using for a few years and it works great, but it has a really nasty hot smell coming from the head when turned on for more than...
I like 24x28" (600x700mm) for 16x20 prints. Using 20x24 means the frames look a bit skinny.
If you're making 24x28 mattes, buy the oversized boards. They cost a bit more but you can get two...
Colour LF portraits of NZ mobsters - Jono Rotman.
Apologies for the late reply, but there is a VueScan/C41 Howto in my FAQ. The photos are missing from it due to the website being hacked and me not backing it up, but the text should still cover...
Yeah, but I'd use plain old ABS or PLA.
Yes, you can calibrate your scanner. Fix the exposure, scan a step-wedge and record all the readings. Scanners are merely high-resolution densitometers.
Bookbinding doesn't have to be expensive; there's a whole industry centered around the binding of PhD theses. You supply a stack of pages with sufficient gutter etc, and you get back hardcover books...
Some chromatic aberrations like secondary spectrum are proportional to focal length, which is the reason why you see expensive APO lenses that try to correct for that in the longer focal lengths. If...
1) scan once, the best you can.
2) for me, 2500dpi for 4x5", but it will depend on your hardware.
3) VueScan, exiftool, and an external (SQL) database of content tags.
Sony A99 and Mamiya RZ67. Not so much backups though as for different purposes - horses for courses. Usually I will have only one with me - for example I don't take the little cameras if I'm going...
Good stuff, TML. I like the symmetry of both the photographer and painter concurrently capturing the bridge.
Is it maybe specular reflections off texture in the paper?
This is good.
Yes you can, using superresolution. It requires that you deliberately and physically jitter the position of the film in the scanner between exposures and then combine them digitally. It...
Oh. Shit. I was depending on them for affordable colour chemistry, and they've stopped shipping the Digibase too.
I'm right for a few more months, but will want to buy a bunch of developer soon....
I scored a 360 Tele-Arton off LFPF after doing basically the same searching you seem to be and it works very well. I chose it on the basis that it has plenty of coverage (I like to use swings) and...
the electronic timers (at least for flash) have triac outputs, which are a bit annoying for converting to drive a solenoid. Far easier to just use a micro and implement the timing directly, instead...
New v0.6 software release with support for baseboard spot-metering. You'll need to do your paper-calibration manually for now, but I may add the ability to load paper-curves into the timer one day....
thanks everyone
https://farm6.staticflickr.com/5559/14561040436_20fde40b41_b.jpg
4x5 IR820, R72, 150mm Nikkor-W, Toyo 45A, Xtol rotary. Thought I posted this before but can't see it in the thread, oh well.
...
My lift handle came pre-broken and I often print in a 3063 (20x24") drum. What I do is:
- stop the rotation
- use my left hand to raise the elbow of the lift (right underneath where the cogs...
There used to be an asylum/jail for the criminally insane in Adelaide, referred to as "Z Ward, Glenside". It closed in the 70s and was recently sold off for use as office space; I managed to get two...
This is fantastic.
Lovely. I use a lift on mine and therefore the cog for drive, but I believe that when no lift is involved, there is usually a big circular magnet glued on the base of the tank. The magnet couples...
Hard drives off-site are IMHO the best+easiest option. Cheaper and more-reliable than DVDs, without the bandwidth and cost issues of the cloud. Sure, the cloud is not really secure, but then...
Try some old hessian sacks; gives a bit of texture and won't show creases. Put it out-of-focus if you don't want as much texture. It's a bit darker than caucasian skin so easier to get good...
Not when reciprocity is failing! That's the whole thing, it's reciprocity failure, i.e. the film fails to follow the whole a-stop-is-a-stop reciprocity rule wherein film-plane illuminance (~= scene...
What you have is a small-signal capacitor. It can block high voltages and has a lovely frequency response but it is not designed for power-factor correction, which implies continuous duty at...
As per my post in the other thread, that is NOT a suitable replacement capacitor because it is not rated for the current you're subjecting it to. Buy a proper motor capacitor, it will still be only...
It's a motor-start capacitor, which needs to handle significant surge currents. You CANNOT replace it with that tiny polyester capacitor linked above because it will explode.
Secondly, are you...
No source sorry, but you can use any 3-6V source, eg 3xAAA, a CR123 or any other lithium cell. PM me and I can check the polarity of mine if you want to graft an external battery pack on. The...
cheers; that should keep me entertained for a couple hours!
thanks, I'll have a look.
Is it worth getting up on one of the neighboring mountains?
Absolutely it is possible. Laser-cut acrylic is likely a more-appropriate technology if you want to design something unique and have it manufactured on the cheap without lots of hard work.
Look...
For future reference, you can blow into a 3xxx tank to open it. The only thing you need to be careful of is that it may bruise your face when the lid pops so to prevent that:
- fill it 95% full...