lenses looking up.jpg
 
lenses looking up
  • EXIF Metadata
  • Information
  • 1 comment
Make PENTAX
Model PENTAX K-50
ExifVersion 0230
Software GIMP 2.8.18
DateTimeOriginal 2017:02:19 17:30:40
FNumber 45/10
ExposureBiasValue 0/10
ExposureTime 1/60
Flash 16
ISOSpeedRatings 1250
FocalLength 3500/100
FocalLengthIn35mmFilm 52
WhiteBalance 0
ExposureMode 0
MeteringMode 3
ExposureProgram 2
Contrast 2
Saturation 0
Sharpness 2
Rate this photo
  • blues_hawk - Sunday 17 September 2023 16:47
    Early days. This was an experimental rig made from mostly inexpensive parts. I later decided core type motors didn't make good servos and rather than spend the money on coreless swiss ones I switched to open loop and steppers. The pentax lens has an arduio cam behind it mounted to some drain pipes with a hand carved bayonet for the lens. The small sensor size really limited what lenses I could use though and I scrapped the project. That and the ps2 cam under it was an early attempt at autoguiding. The motor lope proved to be too much for the system.