A tuned loop is a very effective antenna for medium wave reception in an area with man-made noise. However, using such a loop in close proximity to a laptop computer with an SDR (software-defined radio) is not a good idea because the loop will pick up interference from the computer. Therefore I decided to build a loop antenna with remote tuning by varicaps (varistors if you prefer that term), picking up the idea from T.J. Nelson’s article. That way you can move the loop antenna to a spot further from the computer and possibly a spot with lower interference. Outside is best, so I’ll be aiming to build something that can withstand inclement weather (within reason!).
A warm and beautiful day, and I felt like celebrating it by making colorful pictures. And as it turned out, red was in many of them.
There isn’t much to be had in the way of native 28mm lenses for Sony FE cameras. Of course, Sony offers the FE 2/28 and I’ve tried that one out several times but couldn’t bring myself to buy it. I just don’t like its rendering, the pictures are dull and lifeless to my eyes. That only leaves legacy lenses as prime 28mm options. Continue reading “SMC Pentax 3.5/28 compared to other 28mm lenses”
Recently a Leitz Summicron-R 50mm 1:2 fell into my lap; it was my father’s and I’d completely forgotten about it until my mother asked me what to do with it.
I didn’t know it even existed: a Minolta Panorama Head.
Today I received this nice sample of the MD W.Rokkor-X 28mm 1:2.8, the American version with white “Rokkor-X” lettering. The search for the other Americans continues…
Does anybody know who manufactured this? Just curious…
Update: got an answer, read on!