#sponsored In this crazy experiment we push the limits of lens speed by modding a camera to fit a massive Zeiss Biotar f0.73 lens. Along the way, we are going to take you to the dark side of the moon the realm of the legendary Zeiss Planar f0.7 lens and explain how it helped Staley Kubrick to shot Barry Lyndon in candlelight. We are going to go to the basics to explore the possibilities and to expose the limitations of ultrafast lenses. We look into the possibilities that you have to shoot ultrafast yourself, and what budget options there are. Here we test the Kipon Ibelux 40mm f0.85, the SLR Magic 25mm T0.95… and we boost a Vintage Canon FD f1.2 below f1. We compare shooting ultrafast lenses with shooting at high ISO and of course… using both in combination. Special thanks to Lyndon Gaul and the Marmalade for partnering with us. Please join the ranks of the Media Division: null Facebook Group: Community, discussion, help... ask everything https://www.facebook.com/groups/mediadivision2/ Instagram/IGTV: mini tutorials, whats cooking, and updates: https://www.instagram.com/media.division Check out the websites from our sponsors: Kipon: https://www.kipon.com/en/ Kolari Vision: https://kolarivision.com/ Check out ARTLIST and get 2 free months with an annual subscription using this affiliate link: bit.ly/artlist-mediadivision Here is Wikipedias list of ultrafast lenses: https://en.wikipedia.org/wiki/Lens_speed Here are links to all gear used or described in this video. Some links are affiliate links (its not more expensive for you, but we get a little something if you use these links… thank you for your support). When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network. LENSES Zeiss R-Biotar 100mm f0.73 … US https://ebay.us/teQNZ4 EU https://ebay.us/anvYw4 UK https://ebay.us/AtUgrx KIPON Ibelux 40mm f0.85 Mark II … ebay US https://bit.ly/ibeluxebay EU https://bit.ly/ibeluxebayEU Amazon.com for Sony E: https://amzn.to/2JHq28H for Fuji X: https://amzn.to/2XcwhJq SLR Magic 25mm T0.95 … US https://ebay.us/MDRmcd EU https://ebay.us/LOWdLJ UK https://ebay.us/L37C7j Canon DF 55mm f1.2 (don't use diopter adapters, mod or use adapters, native focal reducers) US https://ebay.us/L9BEKW EU https://ebay.us/Qa64fN UK https://ebay.us/GrzDKb Metabones Speed Booster XL 0.64x US https://ebay.us/lpIS37 EU https://ebay.us/WKzrzj UK https://ebay.us/sVOFW4 Metabones Speed Booster Ultra 0.71x US https://ebay.us/YwmBIV EU https://ebay.us/DQ1wKF UK https://ebay.us/LOwQZM Kipon Focal Reducer US https://ebay.us/WTQQrT EU https://ebay.us/bv5Oip UK https://ebay.us/s0dHOV X-RAY LENSES GUIDE Where to get? ebay is the best source: US https://ebay.us/nucz3L EU https://ebay.us/9v7QMT UK https://ebay.us/loDCH4 Can it focus to infinity? (It will not be to pretty) You can use this formula to calculate the required flange: Maximum focus distance  = FL x (FL - BF + CF)/(CF - BF) FL  =  focal length of lens BF  =  back focal distance of lens (from rear of lens mount to image plane) CF  =  camera flange distance (look up for your particular camera) Coverage: Here is a list from X-Ray lenses that have been reported to cover Full Frame (3rd person claims – no guarantee). Astro Berlin 75mm f1.0 https://ebay.us/vda98H Electronar 68m f1.0 https://ebay.us/Bkd3ru Zeiss R-Biotar 55mm f0.85 https://ebay.us/NIZWte This episode was covered by: Cinema5D https://www.cinema5d.com/media-division-f07-ultrafast-lenses-legends-budget-options-modding-testing/ Fstoppers https://fstoppers.com/gear/f07-look-lenses-some-most-extreme-apertures-out-there-479545 DIYphotography https://www.diyphotography.net/this-video-guides-you-through-modding-and-testing-of-an-ultra-fast-f-0-7-lens/ PetaPixel https://petapixel.com/2020/05/12/testing-an-insanely-fast-100mm-f-0-73-lens-in-real-life/ and many others… thank you for your support Ultrafast Lenses Compendium MDEpicEpisodeS2E02 #f07 #ultrafastlens #kiponibelux 00:00 - Intro 02:14 - What is an Ultrafast lens 03:58 - Available Options 05:57 - The Moon lens - The Zeiss Planar f0.7 09:45 - Barry Lyndon: Filming at candle light 11:41 - Technical background 15:59 - The Zeiss R-Biotar f0.73 18:30 - What is an X-Ray lens? 20:45 - Modding a camera to 3mm flage 25:10 - f0.7 test film “The Mission” 27:38 - Behind the Scenes with practical tips 36:25 - Lens speed vs high ISO 37:12 - When to go Ultrafast 38:30 - Alternatives that make more sense 39:12 - Kipon Ibelux 40mm f0.85 41:35 - Shooting in the dark – high ISO and Ultrafast glass 43:18 - SLR Magic 25mm f0.92 45:11 - Boosting a fast lens to Ultrafast 48:55 - Verdict