Let’s make a decorational tree quick
(This is the English language version of this posting: EVF)
What is this all about? Many old video camera (VHS era) are equipped with tiny black and white CRT screens as viewfinders. It is exactly these this posting is about. Many of them can be hooked up to a BAS or FBAS (Yellow RCA connector). Such as CCTV cameras or a Raspberry Pi to be used as a tiny screen or with the magnifying viewfinder assembly you can put it close to your eye and have a much larger image.
I made another Infrared vs. RGB comparison but this time with different wavelength Infrared-cut filters.
I took this pictures on 14th Nov. 2015 at the Alte Donau subway station in Vienna/Austria.
You can click the knob (< >) and move the slider. By clicking the buttons you can load different wavelength images and their description texts to compare.
Open in new Window/Tab
EV calculated usind this Calculator
I once again got to x-ray some stuff.
This time an old Motorola CPU , a seashell and a Peltier-cooler (TEC)
Continue reading Some X-Rays
Some times when I load a roll of 120 type film into a camera I’m not sure what the numbers on the backing paper look like. Do the lines I see in the peephole on the back of my cameras represent a “1” or are they just some mark on the backing paper and I have to wind a little bit further?
Wouldn’t it be nice to see what these numbers are supposed to look like?
Well, if you had this problem in the past, looking for an answer right now or just for any reason want to see what the backing paper of 120-type of film looks like here you go!
I took an X-Ray and photos of the front and back of a GeForce 6800 GT graphics card.
A photo of the front of the graphics card in comparison with an X-Ray of the same spot.
A little info on what this means and some example pictures
Comparison of an Infrared picture vs. a RGB picture on the basis of a phtograph of Vienna by night. Pay attention to the fog in the distance. (Drag the vertical bar to compare the photos)
Continue reading I modified my Olympus Pen E-PL1 to take Infrared pictures.
Recently I glued together some laser cut pieces of Acrylic with patchy results. The bonding was good but the Acrylic cracked. Hundreds of tiny cracks all along the cut edge.
So, what does one dot o prevent this?
A fine blog about photography http://www.doc-diy.net/