what camera can we use for taking photos for uploading here? can we use simple camera like sony DSC -W580?
@GraphicsPencil What main is not the Camera .. Yes you have to know your limitation but the main thing is the Man behind the Photos ..
and the Quality Of photos..
Yes, you can. But main thinks the photo’s subject or quality, not camera matter. Must need to meet of your photos the following issues: – Blur – Poor focus – Excessive or distracting motion blur – Softness So your photos are OK for uploading here, if all issues done. Thanks
But it matters the resolution right ? Im also having a little canon powershot camera.. and dreaming of taking some photoes.. as those 6000D DSLR cameras a re highly expensive…. 
From my own experience, go for the best you can buy. I started out buying a Canon Powershot also. $500 (cuz I was too cheap to go higher). Found that it could not get decent enough pictures to get many accepted. Upgraded to a Canon Rebel XT for $700. Ho-hum acceptance. Went to Canon 5D for $1700. Suddenly my pics went from less than 60% acceptance to roughly 85%, using same techniques and exposure, etc. But then the 5D Mark II went on super sale for $1800 and I jumped. My acceptance is now around 95% and the quality shames whatever my 5D put out (picture quality not composition quality, mind you). In all, I spent $3000 more than I should have if I had just bought the 5D Mark II in the first place. There is value in the full frame camera with acceptance by stock sites. I am not saying smaller, cheaper cameras do not work, but it will be more difficult.
