- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The maximum aperture is determined by the lens. At 55mm, the 18-55mm lens will not open up beyond f/5.6. This has nothing to do with the ISO or the camera's exposure mode. If you zoom out to 18mm, you can open up to f/3.5.
The varying of the aperture with the focal length is part of the design. While it is possible to build a lens with the same maximum aperture throughout its entire zoom range, that would result in a larger and more expensive lens. For example, Canon has a 17-40mm f/4 lens. That lens weight two-and-a-half times as much and costs more than four times as much as the 18-55mm.
Unless you're a professional photographer who depends on the equipment for your living, don't worry about it and continue clicking away. If the worst happens and your camera fails, your life will continue....maybe even with a new camera.
Is there a filter on the lens? remove the filter and try that. What mode are you shooting in? Switch to "P" for program and the camera will balance the light meter to a correct exposure. When looking through the camera viewfinder yes things will look darker then the scene because of all the glass and stuff the light is traveling through to get to your eye. Sort of like looking at something then putting a pair of sunglasses on. That part is normal. Also the faster the F stop the brighter the viewfinder will be. So lets say your 18-55 is an F4 lens. A lens that is an F2 will be a stop brighter and a lens that is F1.2 will be even brighter then that. You might not be paying attention to the light meter in the viewfinder which for correct exposure the needle needs to be in the middle between the - and + symbols.
it sounds like there is dirt, dust or something else in the lens mechanism. I'm assuming you don't want to take the camera to a repair shop. I've had several cameras and this issue comes up periodically.
You can try:
1. using compressed air (with as thin a nozzle as you can find) to blow out the dust,
2. try powering on the camera and zooming the lens at the same time, 3. gently knocking the camera on a hard surface to loosen the lens mechanism,
4. manually forcing the lens to go back in. This can potentially damage the camera, but it's not working now, so you don't have a lot to lose.
5. Googling the camera model to see if you can find instructions on opening the camera up to clean the lens mechanism.
Everytime I try to turn it on, the lens comes out for about a second,
the camera beeps 3 times, the lens retracts and the camera shuts off.
The battery is completely charged and the camera is only 4 months old.
Backfocus problems will be magnified when using wide aperture lens with shallow depth of field, nice lens btw. Camera's adjustments for manual and autofocus are inside mirror cage behind mirror, and you dont want to risk getting dust on sensor or damaging sensor. Qualified camera repair shop or sending to canon for adjustment would be my suggestion.
This is probably due to a broken sensor tab inside the lens, or a failed sensor. When the lens reaches the end of its travel a small plastic tab will pass between the ends of a C shaped sensor and let the camera know the lens has reached the end of its travel.
You are not hearing a safety device, you are hearing the gears actually slipping. Don't let it do that too much or you will turn one problem into two problems quite quickly.
If you cant find the broken part it will require professional repair. I would advise against taking the lens assembly apart. They are extremely hard to get back together and you very well may end up with a junk camera.
Advance Camera Repair