Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Can the focus and zoom features be operated remotely or only manually by the buttons on the bottom of the camera?
Document: Nor is there any explanation for the various parameters that can be set. The camera seems to have the ability to detect motion but I have no idea how this would be communicated back to the DVR. Also not mentioned is the focus and zoom controls (which are on the bottom of the camera). They also provide a small allen wrench, but I have no idea what this would be used for (some internal fine adjustment I would guess. It's a shame that such a beautiful camera has such poor documentation.
Very well built camera, but twice as long and double the diameter of the camera it replaced.I didn't get the single sheet of poor documentation that others here got, and couldn't find anything on the web to explain what the little joy-stick does. However, I connected it up, set the zoom lens (which is why I replaced the original camera), set the focus, and that was it.
This camera is excellent. Well built, great image, terrific IR (at least 100'). Has a lot of features and very impressive for the money. However, because it is built like a battleship, it is large and heavy. If you have an application where you want the camera to be small and inconspicuous, buy some other camera. I took off one star because the documentation is poor beyond belief. There is one sheet and it assumes you know how to use an EFFIO-E camera.
I purchased these cameras thinking they they would zoom from the description. I couldn't figure the zoom out, nor did the owner's manual describe the procedure. The picture is terrible, do not buy.
IR Range and 12mm field of view are great. Solid case construction but larger than similar outdoor cameras. Bought two units, one would not switch properly to night vision and was returned for refund. Manual zoom and varifocal controls are not accurate. Zoom is very limited. Manual is terrible, does not explain anything about the manual controls or the OSD setup options. I had to search on the Effio-E CCD to get any help with the OSD settings.
I bought this camera to replace one that burnt out. This camera came with no information and does not work in low light at all.
Camera worked great for about a month. Now it wont power on at all. I tried diffrent cables that wont on my other cameras.
I needed a camera to replace our webcam over looking Newport Harbor. It looks great both in daylight and at night. Look for yourself on our website: [...]
I finally installed this camera after purchasing in April. It worked OK for about 20 minutes then went to black screen.No response after 2 emails. I'm going to try Amazon for help.
i bought the camera seller said he had a problem with it i bought to see if it would work and it didnt but the seller was great i got my money back with no problems i bought another one same kind and it works great
Answer: Both the zoom and focus can only be operated manually by the button on the bottom of the camera.