iPhone fun with the RedCat

With a clear night and poor seeing, I decided to try out the William Optics RedCat 250/52 mm telescope visually with a couple of eyepieces. I added the RedCat to my ultra portable kit because it can be used both visually and with a camera. Normally I use either my Sony a7iii full frame or a6300 crop sensor camera at prime focus in place of the diagonal and eyepiece, but tonight I decided to try out an iPhone 11 pro through the eyepiece in afocal mode. The Vixen SLV 4mm has an amazing 20 mm of eye relief. The Moon fills almost 2/3 of the 50 degree apparent field of view, ideal for full disk observation of the moon with this tiny telescope. Here is a quick afocal image of the view with an iPhone 11:

My other eyepiece for the Redcat takes advantage of the rich field view of this small scope capturing 5 degrees of sky. The TeleVue Panoptic 19mm has a 68 apparent degree field of view without the bulk of an ultra-wide eyepiece. I caught the Pleiades before they sank in the west. This afocal image with the iPhone 11 was captured in the auto-stacking night mode. It is vignetted because of the camera placement so this doesn't show the full field of view:

Here is the RedCat set up for visual use with its erecting diagonal and eyepiece.

Content created: 2020-02-12

Translate                

     

Comments


Submit comments or questions about this page.

By submitting a comment, you agree that: it may be included here in whole or part, attributed to you, and its content is subject to the site wide Creative Commons licensing.

Blog


  2020

  2019

  2018

  2017

  2016


Moon Phase