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
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: Hi Andy, thanks for the encouragement! The Orion constellation is a 20 x 120s stacked result, and the Orion nebula is a 6 x 60s stacked result. I was with the other members just now trying to catch a single meteor with all my equipment set up, but the weather was just too bad. Apart from the cloud, there are haze and light pollution problem as well like you said. Too bad...our Mother Earth is falling sick.
Hi Andy, thanks for the encouragement!
The Orion constellation is a 20 x 120s stacked result, and the Orion nebula is a 6 x 60s stacked result.
I was with the other members just now trying to catch a single meteor with all my equipment set up, but the weather was just too bad. Apart from the cloud, there are haze and light pollution problem as well like you said. Too bad...our Mother Earth is falling sick.
Kind of makes you want to retreat up to the top of a mountain and breathe the fresh air (not too high, or you may run out of it) and be free to take clear pics all the time.
Stacking is interesting. Do you use specific software to do that?
Shame that you missed out on the meteors this time, oh well, at least you know you will get another shot at it in 12 months time. ;)
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.
A few of our members will go to Inner Mongolia every year for astrophotography trip. As for myself and few others, we are not that rich, so we can only go to one of the remote island of the Langkawi islands in northern Malaysia. Praying for 2 clear nights, we have to carry more than 20 kgs of equipments travelling on ferry and boat. We did that 2-3 times a year. Though exhausting, it's definitely worthy.
This is one of the shot I took on film back in 2006. I'm yet to produce any nice photo with my 300D over there. Looking forward for the upcoming trip in December.
http://i57.photobucket.com/albums/g222/MichaelTCT/Astronomy/scan0001-1.jpg
For stacking, there are many wonderful freewares available. For planetary imaging using webcam, Registax is the best. As for deep sky digital imaging, DeepSkyStacker and Iris are among the few commonly used.
Though Persied shower this time is a great disappointment, I don't have to wait another 12 months because we still have Leonid and Geminid coming up soon Let's pray.