WebFeb 12, 2024 · 9,847. 12,012. Location: Novi Sad, Serbia. Posted February 12, 2024. Just skip flattener. With x2 barlow you will effectively image only central part of the field (half of width and half of height) - and this part of the field should have minimal curvature. It takes very curved field to have much impact in this region. WebDec 22, 2012 · The object in designing a field flattening lens is to create a lens that shifts the focal points of the Petzval surface to lie in the same plane. Consider inserting a pane of glass in a focusing beam. Due to refraction, the focal point of the beam is shifted by dependent on the thickness of the glass. Thus we have a thickness as a function of ...
Jupiter and Venus conjunction - 2015 06 29 - 22:44 UT
WebSep 30, 2012 · I have added the Hotech 1x Field flattener to it which has a BF of 55mm. Things look alright on my small 533mc sensor and relatively flat, although I have not actually ran a measurement. Now when I let the ASIAir calculate my FL, it comes out either at 902 or 903mm with the field flattener, so it has very minimal reduction to the FL. WebThe Most Reliable Field Flattener. Special Promotional Price! List Price:$245.00. Price:$245.00. On Sale :$ 175.00. You save $70.00! Availability: Usually Ships in 2 to 3 … todd schnucks house
Hotech 2" Field Flattener Nosepiece Removal - YouTube
WebThe trick is often in the details. The Hotech Field Flattner therefore has a self-centering mechanism. Insert the 2 "adapter into the focuser and turn the integrated ring until the … WebA field flattener corrects this problem. They reduce the normal field curvature inherent in most refractors. The result is an image that is sharply focused out to the very edge of your field of view. A field flattener is also a must-have for astrophotographers as images are sharp and clear without any distortions at the edges. WebDec 5, 2024 · I'm installing the Hotech SCA Field Flattener for F/5 to F/8 refractors in my Explore Scientific F/7 ED102 scope. It works great! We also discuss the effect ... penylan road argoed