NO. The lens is required to focus the image on the CCD sensor.
The Canon EF won't work on a film SLR, unfortunately. It only works on DSLR cameras.
When taking long-distance nature photos, your lens is more important that the megapixels of the camera. Any DSLR (digital single-lens reflex cameras) should work well, paired with a good lens like a 600mm F4.
It depends on the brand of camera and the type of lens. Most Nikon film SLR lenses will work (in manual mode) on their digital SLR cameras. Many Canon lenses will work on new Canon SLR cameras, but you have to check compatability between the camera model and the type of lens. Sony purhcased the Minolta digital camera division, so all Sony Alpha DSLRs will use Minolta lenses.
A Digital Single Reflex Lens or DSLR is a type of camera which uses a series of mirrors inside the camera, so that when you look inside the viewfinder of a DSLR, then you will see almost precisely what the camera sensor sees, accurate to a few thousandths of a millimetre. This construction of the mirrors makes the camera more expensive to make, and most cameras simply use the easier and cheaper method, digital viewfinders, which only work when the camera is turned on, whereas on a DSLR, you can look through it anytime (as long as the lens cap is off!)
Yes. The Pentax SLR lens K-mount will fit the Pentax Digital SLR [DSLR] and the Samsung DSLR. Two warnings: (1) you will lose the electronic linkages for some of the automatic functions; (2) the effective focal length of the lens will change. Most current DSLRs have an image sensor that is only about 2/3 the size of a 35mm film frame. Consequently, DSLRs will multiply the focal length of a traditional SLR lens by approximately 1.5: a 50mm SLR lens put on a DSLR will produce an image close to that of a 75mm lens; a 200mm telephoto lens will function as a 300mm lens. At the lower end of the focal lengths, a wide angle SLR lens, such as a 24mm, if attached to a DSLR, would lose its extreme wide angle advantage and function as a 36mm lens. In brief, long lenses will reach further out, but wide angle lenses will lose part of their ability to capture a full scene. Kodak and Canon have announced "full frame" DSLRs: digital cameras that have a sensor the same size as a standard 35mm frame. On such cameras, the SLR lens will retain its effective focal length regardless of whether it's used on an SLR or a DSLR. Neither Pentax nor Samsung has announced such plans for K-mount owners. In any event, the new full-frame Kodak and Canon full-frame DSLRs may be out of an amateur's reach, for they have an announced price of about $8000.
Yes, there are different camera lens' for different cameras. Not all cameras have different camera lens' though and that is because they have an automatic focus. A more detailed and expensive camera should have different lens' since they are for more detailed photographer work than for the regular consumer.
Color cameras work by capturing the image through the lens and imparting an image onto film. The variety of different color cameras is great and a great source to find out how they work is: theimagingsource.com/downloads/howcolcamswp.en_US.
All Canon Rebel DSLR cameras uses EF lenses that fit the Canon EF Mount.
If you are transferring it onto a camera with the same mount then yes. But be aware AUTO FOCUS MAY NOT WORK CORRECTLY. The aperture of the lens may not be as good either. But overall you should be OK. Good Luck
Yes, a macro lens would be a good start as well as a few other important things to work with to make your photography hobby a success and a pleasure to work with.
Yes. Make sure you purchase your sigma lens with the F-bayonet. Here is their lens finder: see related link
No, it will not match. You need an adapter with correction lens to use those lenses for SRT on your Maxxum AF cameras