Hasselblad, Ikea... Swedish passion for assemblies
IN ENGLISH BELOW THE LINE
Per més informació en concret sobre aquesta càmera Hasselblad 500 EL/M, mireu aquí:
www.flickr.com/photos/7455207@N05/50908970962
Veig una tendencia sueca per al montatge i desmontatge: Hasselblad, Ikea...
Aquesta és la meva "aproximació" a les úniques càmeres que s'han fet servir a la superficie de la Lluna, obviament amb les missions Apol·lo entre 1969 i 1972.
Es tracta de la Hasselblad Data Camera (HDC), BASADA en aquesta que veieu aquí, la Hasselblad 500 EL/M. De fet, basada en el model anterior, la 500 EL, però les diferencies son menors. La NASA, en col·laboració amb Hasselblad, va obtenir una càmera de format mitjà, amb porta-pel·licula especials de gran capacitat i intercambiables. Es desmontà tot el sistema reflex, eliminant pes i complexitat. De tota manera, els astronautes només podien composar les imatges a ull, des de l'interior dels vestits espacials. Al ser una càmera electrica no cal avançar el rodet, és automatic. L'objectiu també es beneficià de la eliminació del mirall reflex, ja que sobresortia cap al interior del cos. Es tractava d'un Carl Zeiss Biogon f5.6 / 60mm. Jo obviament no el puc instalar, en una 500 ELM normal, pel que hi he inclos un prou similar Carl Zeiss Distagon f4 / 50mm.
El porta-rodets sí que és prou similar, en aquest cas. En comptes dels usuals de 12 fotos en format 120, les cameres de la NASA carregaven pel·licula especialment fina per poder fer fins a 200 imatges. Els porta-rodets no es podien obrir.
La darrera diferencia evident amb la càmera llunar es que aquesta darrera fou pintada amb pintura platejada per minimitzar les diferencies termiques. Altres diferencies menys evidents eren la presencia d'un vidre calibrat (réseau plate) dins la càmera (que imprimia les creus de referencia a les fotos llunars) i un lubricant especial per aguantar el buit del espai i les temperatures extremes.
==============================================
For more specific, terrenal, information on this Hasselblad 500 EL/M camera, look here:
www.flickr.com/photos/7455207@N05/50908970962
There's a Swedish trend for assemblies here, Hasselblad, Ikea...
This is my "approach" to the only cameras that have been used on the surface of the Moon, obviously with the Apollo missions between 1969 and 1972.
This is the Hasselblad Data Camera (HDC), BASED on the one you see here, the Hasselblad 500 EL/M. In fact, based on the previous model, the 500 EL, but the differences are smaller. NASA, in collaboration with Hasselblad, obtained this way a medium-sized camera, with special large-capacity and interchangeable film holders. The entire reflex mirror system and viewfinder was disassembled, eliminating weight and complexity. Anyway, astronauts could only compose the images by eye, from inside the space suits. Being an electric camera it is not necessary to advance the roller, it is automatic. The lens also benefits from the removal of the reflective mirror as it protrudes into the body. It was a Carl Zeiss Biogon f5.6 / 60mm. I obviously can't install it, on a normal 500 ELM, so I've included here a fairly similar Carl Zeiss Distagon f4 / 50mm.
The film back is quite similar, in this case. Instead of the usual 12 photos in 120 format, NASA cameras loaded especially thin film to be able to take up to 200 images. These backs could not be opened. This one in the image has the same size, but it in fact uses 70mm roll film in large cartridges, allowing to take up to 70 images in more than 4 m. of film. But this is very difficult to obtain, now.
The last obvious difference with the real lunar camera is that the latter was painted with silver paint to minimize thermal differences. Other less obvious differences were the presence of a calibrated glass (grid plate) inside the camera (which printed the reference crosses in the lunar photos), large controls to be used with space gloves, and a special lubricant to withstand the vacuum of space and extreme temperatures.
www.npr.org/2019/07/13/735314929/the-camera-that-went-to-...
www.hasselblad.com/inspiration/history/hasselblad-in-space/
www.hq.nasa.gov/alsj/a11/a11-hass.html
www.spacecamera.co/articles/apollo11
www.spacecamera.co/articles/2020/3/3/gene-cernans-missing...
www.youtube.com/watch?v=xhEKxtzRbVo
www.youtube.com/watch?v=Mwe9NlMk7PU
Hasselblad, Ikea... Swedish passion for assemblies
IN ENGLISH BELOW THE LINE
Per més informació en concret sobre aquesta càmera Hasselblad 500 EL/M, mireu aquí:
www.flickr.com/photos/7455207@N05/50908970962
Veig una tendencia sueca per al montatge i desmontatge: Hasselblad, Ikea...
Aquesta és la meva "aproximació" a les úniques càmeres que s'han fet servir a la superficie de la Lluna, obviament amb les missions Apol·lo entre 1969 i 1972.
Es tracta de la Hasselblad Data Camera (HDC), BASADA en aquesta que veieu aquí, la Hasselblad 500 EL/M. De fet, basada en el model anterior, la 500 EL, però les diferencies son menors. La NASA, en col·laboració amb Hasselblad, va obtenir una càmera de format mitjà, amb porta-pel·licula especials de gran capacitat i intercambiables. Es desmontà tot el sistema reflex, eliminant pes i complexitat. De tota manera, els astronautes només podien composar les imatges a ull, des de l'interior dels vestits espacials. Al ser una càmera electrica no cal avançar el rodet, és automatic. L'objectiu també es beneficià de la eliminació del mirall reflex, ja que sobresortia cap al interior del cos. Es tractava d'un Carl Zeiss Biogon f5.6 / 60mm. Jo obviament no el puc instalar, en una 500 ELM normal, pel que hi he inclos un prou similar Carl Zeiss Distagon f4 / 50mm.
El porta-rodets sí que és prou similar, en aquest cas. En comptes dels usuals de 12 fotos en format 120, les cameres de la NASA carregaven pel·licula especialment fina per poder fer fins a 200 imatges. Els porta-rodets no es podien obrir.
La darrera diferencia evident amb la càmera llunar es que aquesta darrera fou pintada amb pintura platejada per minimitzar les diferencies termiques. Altres diferencies menys evidents eren la presencia d'un vidre calibrat (réseau plate) dins la càmera (que imprimia les creus de referencia a les fotos llunars) i un lubricant especial per aguantar el buit del espai i les temperatures extremes.
==============================================
For more specific, terrenal, information on this Hasselblad 500 EL/M camera, look here:
www.flickr.com/photos/7455207@N05/50908970962
There's a Swedish trend for assemblies here, Hasselblad, Ikea...
This is my "approach" to the only cameras that have been used on the surface of the Moon, obviously with the Apollo missions between 1969 and 1972.
This is the Hasselblad Data Camera (HDC), BASED on the one you see here, the Hasselblad 500 EL/M. In fact, based on the previous model, the 500 EL, but the differences are smaller. NASA, in collaboration with Hasselblad, obtained this way a medium-sized camera, with special large-capacity and interchangeable film holders. The entire reflex mirror system and viewfinder was disassembled, eliminating weight and complexity. Anyway, astronauts could only compose the images by eye, from inside the space suits. Being an electric camera it is not necessary to advance the roller, it is automatic. The lens also benefits from the removal of the reflective mirror as it protrudes into the body. It was a Carl Zeiss Biogon f5.6 / 60mm. I obviously can't install it, on a normal 500 ELM, so I've included here a fairly similar Carl Zeiss Distagon f4 / 50mm.
The film back is quite similar, in this case. Instead of the usual 12 photos in 120 format, NASA cameras loaded especially thin film to be able to take up to 200 images. These backs could not be opened. This one in the image has the same size, but it in fact uses 70mm roll film in large cartridges, allowing to take up to 70 images in more than 4 m. of film. But this is very difficult to obtain, now.
The last obvious difference with the real lunar camera is that the latter was painted with silver paint to minimize thermal differences. Other less obvious differences were the presence of a calibrated glass (grid plate) inside the camera (which printed the reference crosses in the lunar photos), large controls to be used with space gloves, and a special lubricant to withstand the vacuum of space and extreme temperatures.
www.npr.org/2019/07/13/735314929/the-camera-that-went-to-...
www.hasselblad.com/inspiration/history/hasselblad-in-space/
www.hq.nasa.gov/alsj/a11/a11-hass.html
www.spacecamera.co/articles/apollo11
www.spacecamera.co/articles/2020/3/3/gene-cernans-missing...
www.youtube.com/watch?v=xhEKxtzRbVo
www.youtube.com/watch?v=Mwe9NlMk7PU