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Askar SQA55 F4.8 Petzval Refractor Telescope

Askar SQA55 F4.8 Petzval Refractor Telescope

Agenaastro

Askar SQA55 F4.8 Petzval Refractor Telescope

NShared byNebula Photos
From video: Is Full Frame Worth It?
Published: March 13, 2026

Video Description

Simple question, complex answer. Join me in a big exploration of full frame deep sky imaging. Head to https://www.squarespace.com/nebulaphotos to save 10% off your first purchase of a website or domain using code NEBULAPHOTOS == Want more? Check out my Patreon! == Monthly bonus videos, zoom calls, imaging challenges, and more starting at just $1 per month: https://patreon.com/nebulaphotos Products mentioned in this video: ZWO ASI4400MC - https://bit.ly/4boueX6 ZWO ASI6200MC - https://bit.ly/4b4McPC Askar SQA55 - https://bit.ly/4hWLUef ============================= Contents ============================= 0:00 Intro 0:40 My History With Full Frame 2:26 What is Full Frame? 3:44 Sensor sizes 4:51 The Two Ways to Change FOV 6:34 Why isn't Full Frame more popular for Astro? 10:53 Pixel Size 12:31 Three Full Frame Cameras 15:23 Comparison 1: 264mm f.l. 25:27 Comparison 2: 840mm f.l. 30:50 Squarespace (sponsor) 32:07 Credits (patreon) ============================= Video Disclosures ============================= ZWO sent me the ASI4400MC for testing a few months ago. No money exchanged hands and ZWO has no say in what I share in my videos. My review policy is available here: https://www.nebulaphotos.com/reviews/ And I'm happy to discuss it with anyone that has questions. I do use affiliate links in my video descriptions. This means if you click one of my links and make a purchase, I get a small commission. Your price will never go up! ============================= Channel Disclosures ============================= I am a member of the High Point Scientific, Agena Astro, eBay, ZWO, All-Star Telescopes, B&H Photo Video, Astrobin, Svbony, TTArtisan, Turing, William Optics, and Amazon affiliate programs. Product links in my video descriptions are typically affiliate links, which means, at no extra cost to you, I will make a commission if you click them and purchase something. I also have working relationships with the following companies/brands to receive products to test: Askar, ZWO, Pegasus Astro, DwarfLab, OG Star Tech, Svbony, High Point Scientific, Agena Astro, QHYCCD, William Optics, Airy Disk, SmallRig, Venus Optics, Sigma USA, Astrogear.net, Night Sky Camera, Woodland Hills Camera & Telescope, Hunt's Photo & Video. This video is sponsored by Squarespace.