Very close, Anthony. I don't have a 500-600 mm telephoto for my camera, and in a partial eclipse at mid-day, the sun is too bright to use a camera without a solar filter. Both are quite expensive.
So, I decided to go "old school," and dragged out my 6 inch reflector telescope, which I hadn't use since my son Greg was in High School. It has an easel attachment that can hold a white card a few inches in front of the eyepiece. Of course, the sun was so bright that I could not look through the eyepiece to focus on the sun, or even through the small attached spotter scope. I had my wife hold up a notebook in front of the open end of the telescope barrel, while I moved the telescope around until the sun's image could be seen on the notebook. Since I liked what I saw, I had Lee hold the notebook still while I grabbed a photo with my DSLR. That is the smaller, yellowish image. That one was bounced only off the main mirror, which accounts for its orientation, and I think the dark cover of the notebook made the yellow stand out. I then moved the telescope a bit more, until the image through the eyepiece was centered on the card. I then focused the image, as best I could, on the card, and took several photos of the sun's image on the card. The larger, paler image(s) were taken in this manner. The orientation is the result that these images were reflected twice: off the main, six inch, mirror, and then off the small secondary mirror which bounces it down to the prism that sends the image through the eyepiece, which magnifies and focuses it Not great images, but I had a good time, and enjoyed the partial eclipse. Dan Matyola http://www.pentaxphotogallery.com/danieljmatyola On Fri, Aug 25, 2017 at 12:53 AM, Anthony Farr <farranth...@gmail.com> wrote: > The lower picture looks like a projection onto black paper. I think that's > the paper's texture showing through the image. If so, then it's 'wrong > reading' aka a mirror image, because we're looking at the reflection side > rather than the transmission side. > > regards, Anthony > > On 25 August 2017 at 08:29, Larry Colen <l...@red4est.com> wrote: > > > > > > > Daniel J. Matyola wrote: > > > >> These two rather crude images where taken at the same location in New > >> Jersey within a few minutes of each other: > >> > >> https://dan-matyola.squarespace.com/danmatyolas-pesos/2017/ > >> 8/24/different-moons > >> > >> Someone asked me why the crescents are reversed. Can you deduce the > >> reason > >> they are so different? > >> > > > > For the same reason that the moon is black in both of them. > > > > > >> Dan Matyola > >> http://www.pentaxphotogallery.com/danieljmatyola > >> > > > > -- > > Larry Colen l...@red4est.com (postbox on min4est) http://red4est.com/lrc > > > > > > > > -- > > PDML Pentax-Discuss Mail List > > PDML@pdml.net > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > to UNSUBSCRIBE from the PDML, please visit the link directly above and > > follow the directions. > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
