Help!!! Look at this image! DSLR

For people new to astronomy who want to ask those questions that they were afraid to ask. Receive helpful answers here.
User avatar
shirox
Posts: 1097
Joined: Fri Nov 05, 2010 12:21 am
Favourite scope: Takahashi FSQ85EDX
Location: Outram

Help!!! Look at this image! DSLR

Post by shirox »

Look at this photo!

Image

Any expert can help me with this?

Whats that?
User avatar
weixing
Super Moderator
Posts: 4708
Joined: Wed Oct 01, 2003 12:22 am
Favourite scope: Vixen R200SS & Celestron 6" F5 Achro Refractor
Location: (Tampines) Earth of Solar System in Orion Arm of Milky Way Galaxy in Local Group Galaxies Cluster

Post by weixing »

Hi,
Look like fungus... Change to other lens and shoot again using similar setting (or smaller f-stop) at the blue sky. If the "thing" didn't appear, it's your lens or filter... if it's does, it's your camera sensor.


Have a nice day.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
User avatar
shirox
Posts: 1097
Joined: Fri Nov 05, 2010 12:21 am
Favourite scope: Takahashi FSQ85EDX
Location: Outram

Post by shirox »

thanks bro, anyone has spare lens to let me try?
i have only 1......
**************************************************************
http://eltonastronomy.blogspot.com/

Mersing finally installed some water sink!
User avatar
cloud_cover
Posts: 1170
Joined: Mon Jul 12, 2010 6:08 pm
Favourite scope: 94.5", f/24 Ritchey-Chretien Reflector
Location: Restaurant At the End of the Universe

Post by cloud_cover »

Aliens!!!!!!!
Try shooting without the lens at all. If the specks are still present, then the dirt is on your CCD.
In which case get a puffer, CAREFULLY lock up the mirror (or shoot a long exposure) and blow air at the CCD witht he camera held pointing downward.
Which DSLR are you using?
DON'T PANIC
User avatar
shirox
Posts: 1097
Joined: Fri Nov 05, 2010 12:21 am
Favourite scope: Takahashi FSQ85EDX
Location: Outram

Post by shirox »

i tried without lens. just pure white with no worms. i'm using 450D
**************************************************************
http://eltonastronomy.blogspot.com/

Mersing finally installed some water sink!
User avatar
orly_andico
Posts: 1616
Joined: Sun Aug 09, 2009 11:14 pm
Location: Braddell Heights
Contact:

Post by orly_andico »

i don't think that's fungus. i think it's dirt on the sensor.

try to stop down the lens to f/22, then take a picture of a plain white sheet. if it's sensor dirt it will become much more obvious.
User avatar
shirox
Posts: 1097
Joined: Fri Nov 05, 2010 12:21 am
Favourite scope: Takahashi FSQ85EDX
Location: Outram

Post by shirox »

confirmed from Canon is fungus growth in CMOS chip.
Requesting for refund. Damn!
**************************************************************
http://eltonastronomy.blogspot.com/

Mersing finally installed some water sink!
User avatar
orly_andico
Posts: 1616
Joined: Sun Aug 09, 2009 11:14 pm
Location: Braddell Heights
Contact:

Post by orly_andico »

whoah. fungus growth on the chip! that is a first!
User avatar
shirox
Posts: 1097
Joined: Fri Nov 05, 2010 12:21 am
Favourite scope: Takahashi FSQ85EDX
Location: Outram

Post by shirox »

ya la. when i got it, i ask the owner how it was kept. she told me in the bag since bought.... so today took alot of shots just to be sure

the guy in canon told me if taking dark backgrounds won't be obvious
**************************************************************
http://eltonastronomy.blogspot.com/

Mersing finally installed some water sink!
User avatar
orly_andico
Posts: 1616
Joined: Sun Aug 09, 2009 11:14 pm
Location: Braddell Heights
Contact:

Post by orly_andico »

is it still under warranty?

that fungus might be removable with a simple sensor swab.
Post Reply