Timeline for Usage of Apollo Lunar Surface Hasselblad Camera with 500 mm lens?
Current License: CC BY-SA 4.0
16 events
| when toggle format | what | by | license | comment | |
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| Jul 6, 2019 at 16:32 | vote | accept | Uwe | ||
| Oct 18, 2018 at 15:18 | comment | added | Uwe | @uhoh: It is a pleasure to me if my links are reused. | |
| Oct 13, 2018 at 8:58 | comment | added | uhoh | I've used your link here thanks! | |
| Sep 24, 2018 at 14:14 | history | edited | Uwe | CC BY-SA 4.0 |
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| Sep 24, 2018 at 13:23 | comment | added | Uwe | If I calculate the crop factor based on the format diagonal, for 35 mm film and 24 x 36 mm format, the diagonal is 43.27 mm. For 70 mm film and 53 x 53 mm format the diagonal is 74.95 mm. The crop factor is thus 0.58 and a 500 mm lens would be around 288 mm. The negative format should be the same as that of the 60 mm Biogon lens. | |
| Sep 24, 2018 at 13:19 | answer | added | Uwe | timeline score: 15 | |
| Sep 24, 2018 at 1:35 | comment | added | uhoh | @hobbs thanks for going into some depth. Being "exceedingly stupid" I would have used the 0.5 multiplier ;-) | |
| Sep 24, 2018 at 1:30 | comment | added | hobbs | (the 70mm film is mentioned by both links in the question) | |
| Sep 24, 2018 at 1:28 | comment | added | hobbs | @uhoh usually the 500EL is fitted with a 120 film back for 6x6cm medium format, but for Apollo use it was fitted with a special back to take 70mm film cartridges. So the crop factor should be somewhere around 0.35 to 0.4 relative to 35mm (not 0.5 because the "raw" film sizes include the perfs), and a 500mm lens would be around 175 - 200 mmE. | |
| Sep 24, 2018 at 0:29 | comment | added | uhoh | I usually think of lens focal lengths in terms of the equivalent for a 35mm format camera. Did these cameras have 35mm film, or something larger? If larger, what would be the equivalents of 60mm and 500mm? | |
| Sep 24, 2018 at 0:00 | history | tweeted | twitter.com/StackSpaceExp/status/1044013721910153216 | ||
| Sep 23, 2018 at 20:57 | history | edited | Uwe | CC BY-SA 4.0 |
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| Sep 23, 2018 at 20:53 | answer | added | Russell Borogove | timeline score: 21 | |
| Sep 23, 2018 at 20:33 | answer | added | Dave | timeline score: 8 | |
| Sep 23, 2018 at 20:33 | history | edited | Uwe | CC BY-SA 4.0 |
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| Sep 23, 2018 at 20:12 | history | asked | Uwe | CC BY-SA 4.0 |