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Foros de astrofotografía y ciencias afines |
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.: AstrofotografÃa :. Foro dedicado a las salidas de observación y fotografÃa astronómica
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pelu Master
Joined: 26 Dec 2006 Posts: 559
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Posted: Fri Aug 31, 2007 9:21 am Post subject: Canon 40D |
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No se si habéis seguido la aparición de esta nueva cámara, pero parece que tiene buenas capacidades añadidas para este hobbie nuestro.
este es un recorte que me han enviado:
Since Astrophotography is a passion of mine, I was hoping the Remote
Liveview would be helpful, and after tring it out, it again has
exceeded my expectations...
-The update rate of the live image sent to the PC via the USB is
really great! A tiny bit of lag compared to the LCD, but it looks
"live".
- As you move the zoom box around, exposure is adjusted to where it's
pointing...a movable spot meter!
- You can manually control focus to a very fine degree. They provide a
coarse, medium and fine focus buttons on the GUI. This will be an
incredible feature for astrophotography! I usually set up a PC outside
and remote control it from a PC inside. Now, I'll be able to see (I'm
sure refrash rates will be slow though) and adjust focus without
getting bit by mosquitos or freezing my butt off!
- FINALLY, you can set Bulb times for >30 seconds over the USB
cable...no more Serial cable adapted to control the camera! They have
a nice intervalometer gui to take exposures every so often as well.
- A single Full res finest JPG takes about a second, a RAW takes about
3-4 seconds...nice!
- Initial worry about Thermal noise with extensive liveview so far
doesn't look warranted. I took a 65 second ISO exposure in very dark
conditions and it looks bright and noise free...no hot spots! This was
generous exposure (about 1/2 stop overexposed), so it probably hid a
lot. Nice start, though.
THat's it for tonight...so far, it looks like Canon did their homework
with Liveview...it's not just a kludged together at the last minute
feature. I personally am going to benefit from it a lot!
Rick _________________ Un montón de trastos, alambre y cinta aislante ..... |
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wito Colaborador
Joined: 18 Jul 2006 Posts: 360 Location: Artes
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Posted: Fri Aug 31, 2007 9:29 am Post subject: |
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Hola Pelu
Se comento un poco en este hilo
http://www.astrofotografia.es/.....php?t=5841 _________________ SW 200/100 , Sw 114/900 , SW 80/400 Losmandy G11, FS2
Toucam II , Canon 350D(sin mod), DBK 31AF03 |
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pelu Master
Joined: 26 Dec 2006 Posts: 559
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Posted: Fri Aug 31, 2007 9:43 am Post subject: |
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Caramba, se me pasó ese hilo.
seguramente es porque Telefónica me tuvo una semana sin lÃnea _________________ Un montón de trastos, alambre y cinta aislante ..... |
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ManoloL In omnia paratus
Joined: 29 Jan 2006 Posts: 2649 Location: Sierra Norte de Madrid
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Posted: Fri Aug 31, 2007 10:06 am Post subject: |
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Hola:
Tiene bastantes cosas de las que pusieron a la 20Da, pero con el filtro incordiando. Lo mismo sacan la 40Da.
La posibilidad del control del tiempo de las exposiciones largas si usar el cable de Bulb, es la primera vez que lo leo en un comentario.
Saludos. _________________ SW-ED80, MiniBorg 50-250mm para guiado, ETX70, EQ3 motorizada y con puerto de guiado artesanal, ToucamII (SC1), Canon EOS300D (de serie) y EOS 400D (sin filtro IR), Canon EFS18-55mm , EF 50mm f:1,4 y EF 20mm f:2,8; Sigma 70-300 mm APO; Filtro IDAS LPS y Losmandy G11 con Gemini. |
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javier_laina Master
Joined: 21 Nov 2006 Posts: 577 Location: Las Rozas
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Posted: Fri Aug 31, 2007 10:29 am Post subject: |
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También tiene los RAW a 14 bits (en vez de los 12 de las actuales), que creo que será de lo más interesante de esta cámara para su aplicación en astrofotografÃa. _________________ Saludos, Javier
http://personales.ya.com/javier_laina/ |
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Borja Colaborador
Joined: 26 Nov 2005 Posts: 371 Location: Barcelona
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Posted: Fri Aug 31, 2007 11:10 am Post subject: |
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Y se pueden descargar los ficheros y disparar vÃa wifi (http/ptp)
Saludos _________________ Refractor SW-102/1000 * Reflector OrionOptics-200/900 * MiniBorg 50 * GM-8 * Canon EOS 400D modificada * 70-200 f/4L |
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Borja Colaborador
Joined: 26 Nov 2005 Posts: 371 Location: Barcelona
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Posted: Sat Sep 01, 2007 2:48 am Post subject: |
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URL con las especificaciones
http://www.canon-europe.com/Fo.....sp?specs=1
Saludos _________________ Refractor SW-102/1000 * Reflector OrionOptics-200/900 * MiniBorg 50 * GM-8 * Canon EOS 400D modificada * 70-200 f/4L |
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Tirulix In omnia paratus
Joined: 26 Nov 2005 Posts: 2517 Location: Parets
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Posted: Sat Sep 01, 2007 9:07 am Post subject: |
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Carai, pues si que se han puesto las pilas los de Canon... la cosa promete mucho!!!! _________________ Tirulix
http://www.astrofotografia.org
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SW80ED, SW 200/1000, SW 254/1200
Losmandy G-11(Gemini Level4), HEQ5 SkyScan, Vixen Super Polaris
Tubo Guia Skylux 70/700 y Mak-102
CANON EOS 300D (Sin Mod), EOS 350D (modificada), Canon EF 1.8 50mm, webcam SCP900 (mod SC1), DSI II |
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ManoloL In omnia paratus
Joined: 29 Jan 2006 Posts: 2649 Location: Sierra Norte de Madrid
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Posted: Sat Sep 01, 2007 10:52 am Post subject: |
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Hola.
Pués parece que la cosa va en serio y ya ha llegado alguna a España:
http://www.canonistas.com/foro.....amp;page=2
Si uno afronta el riesgo de comprar en USA la cosa sale por unos 1300$, y por lo que parece hasta se cuelan sin pagar aduanas.
Mas barato de lo que me costó la 300d hace unos 3 años.
Saludos. _________________ SW-ED80, MiniBorg 50-250mm para guiado, ETX70, EQ3 motorizada y con puerto de guiado artesanal, ToucamII (SC1), Canon EOS300D (de serie) y EOS 400D (sin filtro IR), Canon EFS18-55mm , EF 50mm f:1,4 y EF 20mm f:2,8; Sigma 70-300 mm APO; Filtro IDAS LPS y Losmandy G11 con Gemini. |
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pelu Master
Joined: 26 Dec 2006 Posts: 559
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Posted: Mon Sep 03, 2007 10:43 pm Post subject: |
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El amigo Rafa se pilla una. Ya nos contará... _________________ Un montón de trastos, alambre y cinta aislante ..... |
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