While I await delivery of my new camera, i was just thinking if there is any merit in going for CF over xD for memory cards. Ive ordered a 1GB xD card to get me started, but as the camera also accepts CF is it a better option? As for the connectivity, either CF or xD is fine for the transfer of images as I have media readers for both.
Andy
Since I'm using the Canon 300D, I have no choice but to use CF.
But I remember when I was buying a memory card for my PDA, he mentioned that generally CF is faster than other cards, but since it's bigger in size, it's not popular among manufacturer. I don't know how true is that.
I found a site http://www.memorex.com/downloads/whitepapers/WhitePaper_Reference_Guide_Flash_Mar06.pdf but I have no time for it now (working )
michael said: Since I'm using the Canon 300D, I have no choice but to use CF. But I remember when I was buying a memory card for my PDA, he mentioned that generally CF is faster than other cards, but since it's bigger in size, it's not popular among manufacturer. I don't know how true is that. I found a site http://www.memorex.com/downloads/whitepapers/WhitePaper_Reference_Guide_Flash_Mar06.pdf but I have no time for it now (working )
Thanks for that Link - Yup, Speed would be fairly important I think especially for RAW given their size (18mbs each apparently on the fuji) :S
The 300D looks like a superb camera. Canon always get good reviews dont they?
The 300D is the arguably the most popular model for astrophotography. All of us in the group here are using either 300D or 350D.
Even for normal photography, I think 300D is the "just nice" model considering its price then and specs.
michael said: The 300D is the arguably the most popular model for astrophotography. All of us in the group here are using either 300D or 350D. Even for normal photography, I think 300D is the "just nice" model considering its price then and specs.
Thats interesting RE astrophotography. Do you have any of your pics online any place?
Oddly enough, I was listening to "Tips from the Top Floor" podcast yesterday in which someone asked a question about long exposure times on Digi cams (although he was specifically talking about DSLR) compared to standard film cameras. Someone he knew was taking 8HR exposures of the sky on a film camera...... !!!!!.
8 hrs ?????
Must have been using a pinhole "lens"........and a dang small one at that !
Ted
I routinely use multi-hour exposures on dark nights. 8 hours is very doable at ISo 100 at F22. Digital can't handle it with off-the-shelf cameras due to infrared bleed from the sensor amplifier. That and the battery crashes after holding the mirror up for an hour or so.
I built a rig to use a car battery, inverter and a Canon AC supply on a Canon 5D but I get infrared bleed after about 2 hours.
I guess theres still some problems with film on such long exposures..... I cant remember the name of the effect though.
Its understandable why we have problems down here on the ground with all the atmospheric noise, distorsions and other dynamic influences. A lot can change during an 8hr exposure i would imagine ;)
Hi Rikk, I'm not sure whether it the same issue, but we remove the infrared filter for astrophotography purpose - to obtain the natural colour.
What does infrared bleed mean?
Normally we don't do continuous long exposure unless it's on film. For digital astrophotography, we do short exposure (20-60 secs) and take multiple shots (10-30) and stack them.
Hi Andy,
I'm not sure which problem you are referring to, but digital photography nowaday do has a lot of advantage over film.
I'm not sure whether intensity is the term. The performance of a negative is not linear like the CMOS/CCD sensor. For digital, you expose twice the exposure time to get twice the output, but for film, you need more than twice the exposure time.
Like you said, long exposure on film really depends on the weather change, while for digital, we can just drop the frames with bad result when stacking.
michael said:What does infrared bleed mean?
The infrared bleed comes from the amplifier adjacent to the sensor. It is a red circular fog creeping in from one side.
I prefer to do my long-exposure stuff on film still. It is the only thing I still shoot on film though.
Hi RIkk, thanks for the info. Will read more on that.