Comments

Author Comment Last activity Moderation
stef "@realestateediary Are there any further updates to this design? Re the razor slit or any geometric changes? I am very much interested in printing t..." | Read more » over 2 years ago
stef "there may be some answers for you in the research notes produced by @Stoft and @Warren on the topic of camera's native resolution and optics as a ..." | Read more » over 4 years ago
stef "You might do a search for notes by @stoft 're the plab v3 model. There are drawings that he produced and excellent discussions. The plab v3 mounts ..." | Read more » over 5 years ago
stef "Further to my previous replies, it may be possible to view the sun disk attenuated with the filters used by welders to view their work. I have not ..." | Read more » about 6 years ago
stef "What I was alluding to is that with all of the filter attenuation, the cmos sensor was still overloaded. This can be seen in the spectra submitted..." | Read more » about 6 years ago
stef "I have used photographic neutral density filters and have not been able to view the sun directly using the spec3 highly modified device. The attenu..." | Read more » about 6 years ago
stef "Also more detail, e.g. slit width, any other departure from stock to help others. Stef " | Read more » over 6 years ago
stef "It would be useful if you had given the thingiverse number along with your note. I'm interested. Thanks. Stef. " | Read more » over 6 years ago
stef "@warren, @rthalman I will share the build details once I get some fotos. The public library operates on a cost recovery system so the cost of the p..." | Read more » about 7 years ago
stef "@rthalman: Hey, I'm not complaining, your design got me going on the 3D printing thing. Insofar as to the Cam temperature, by turning off the autof..." | Read more » about 7 years ago
stef "@rthalman, @warren I have replicated the design using the printer in my local library as well as the modification to the Life cam where I removed t..." | Read more » about 7 years ago
stef " khufkens-pi-camera-response-curves-3342e29_-3-.zip @warren,@stoft This may provide additional info. Stef " | Read more » over 7 years ago
stef "@warren Thanks for your comments. Prior to the IR filter removal, I had no indication that there was a light transmission through the cover proble..." | Read more » over 7 years ago
stef "Done! " | Read more » over 7 years ago
stef "Thanks for that tidbit. It is re-edited. " | Read more » over 7 years ago
stef "It probably would help to identify the camera better e.g. JDEPC-0V05 as shipped with the PLAB 3 spectrometer IR filter removal and Focusing. I thin..." | Read more » over 7 years ago
stef "Very nice, but more detail is needed. stef " | Read more » over 7 years ago
stef "@warren After sleeping it over, realized that due to the no IR filter of the raspberry the bandwidth response will be different from the published..." | Read more » over 7 years ago
stef "@warren Here is a link http://www.khufkens.com/projects/ov5647-spectral-response/ and here is a zip file khufkens-pi-camera-response-curves-3342e..." | Read more » over 7 years ago
stef "Unfortunately I did not do a baseline measurement to do a comparison. Will keep that in mind for the future. stef " | Read more » over 7 years ago
stef "The BIG advantage of the Raspberry Pi is the use of the Sony IMX298 sensor whose spectral bandwidth is known and is 16 megapixel sensor. Much like ..." | Read more » over 7 years ago
stef "@warren This shows a metal 1/4-20 metal adapter for a tripod mount also addition of the rear 1.5X2 bulkhead with an indicator power on lead for t..." | Read more » over 7 years ago
stef "@warren I have used an automotive type flat black rust paint which is available locally and comes as a spray can application or in a 237ml can for ..." | Read more » over 7 years ago
stef "Having built the DSSK 3 and experiencing utter frustration with it the minimum for me is the wood platform as per the upgrades with additional modi..." | Read more » over 7 years ago