WebREDCAT 51 II. コンパクトで高性能!. 話題の3群4枚ペッツバール式鏡筒. 新たに使いやすく改良されたリニューアル第二世代モデルが新登場!. 鏡筒デザインとフォーカス機構が … WebFeb 12, 2024 · The William Optics RedCat 51 APO is a 51mm f/4.9 Petzval refractor that features synthetic fluoride (FPL53 and FPL51) glass elements for a full-frame, flat field image. Provides high-resolution images when used for astrophotography or wildlife photography. Its fast f/4.9 focal ratio and compact size make it ideal for convenient wide …
f=250mm付近激戦区レンズ。星像対決の巻 - 天文はかせ幕下
WebWatch on. This RedCat refractor has a 51 mm objective lens with 250 mm of focal length, resulting in a fast f/4.9 focal ratio. High-quality Ohara FPL53 glass comprise the lenses of this quadruplet refractor and provide a flat field, even for full-frame camera sensors. The RedCat 51 sports 48mm threads for compatibility with most digital and ... WebJun 27, 2024 · The Redcat 51 is designed for imaging, but William Optics does offer a special made diagonal for the Redcat 51, along with a 10mm eyepiece for visual use. To install the diagonal, you have to remove the built-in rotator (because it takes up too much of the back focus), just so that you can get the diagonal closer to the last glass. penn state television football schedule
【最速インプレッション】RedCat51・カメラレンズ感覚 …
WebSPEC比較. はじめに、両者の簡単なSPEC比較をTable 2に示しました。RedCat 51の方が口径が10 mm小さいため、明るさの面では若干不利です。一方、レンズ構成については … WebJun 20, 2024 · I am wanting to expand my scope usage, and I have come down to either the RedCat51 or the ZenithStar61, these are both from WO. I want to be able to use them for solar observations and to also have it for night time astro-imaging. I have made a short list for each option and what my current thoughts are on them. IF I was to go with the … to be hearing