The original iPhone and iPhone 3G feature a built-in Fixed focus 2.0 megapixel camera located on the back for still digital photos. It has no optical zoom, flash or autofocus, and does not support video recording (iPhone 3G does support video recording via 3rd party App available on the App Store), however jailbreaking allows users to do so. Version 2.0 of iPhone OS introduced the capability to embed location data in the pictures, producing geocoded photographs.

The iPhone 3GS has a 3.2 megapixel camera, manufactured by OmniVision, featuring autofocus, auto white balance, and auto macro (up to 10 cm). It is also capable of capturing 640x480 (VGA resolution) video at 30 frames per second, although compared to higher-end CCD based video cameras it does exhibit the rolling shutter effect. The video can then be cropped on the device itself and directly uploaded to YouTube, MobileMe, or other services

The iPhone 4 introduced a 5.0 megapixel camera (2592x1936 pixels), also located on the back, which is equipped with a backside illuminated sensor capable of capturing pictures in low-light conditions, as well as an LED flash capable of staying lit for video recording at 720p resolution, considered high-definition. In addition the iPhone 4 has a second camera on the front capable of VGA photos and SD video recording.

However, many people don’t know how to transfer photos or camera photos to PC as below.

Q: Photo transfer from iPhone to pc question?
How do I transfer ALL of the pictures from my iPhone to my computer? I can only transfer the photo album titled "Camera Roll." There are 3755 pictures in my "Photo Library" folder and more in other folders. When I connect my USB wire from my iPhone to my computer it only comes up with the 5 camera roll pictures so how do I get them all?

Q: How do I transfer photos on iPhone to the PC?
I know the obvious My Computer > Apple iPhone thing, but that only gives me photos that I've taken with the iPhone. I have a bunch of albums that I previously transferred from my old PC and I want to get all of those photo's to this new one from the iPhone. Any FREE programs out there that lets you do this? Thanks.

Luckily, a friend of mine recommended me an iPhone Photo to PC Transfer which he tried very great. I download the free trial and found it's very easy to use, and can assist iPhone users to sync, save, send or transfer iPhone photos, camera roll from iPhone, iPhone 3G, iPhone 3GS, iPhone 4 to PC or iTunes. Then I bought it without any hesitating. If you have the same problem with me, maybe you can try it. Learn the details about how to transfer iPhone Photo to PC! Hope to help you. If you are Mac users, you can choose iPhone Photo to Mac transfer.