[Gopala Krishna Baliga]

Dear Girish, Sir will reply when he can.

1. In the meanwhile, did you configure the camera for back button focus on your camera or is focus set to half press on shutter release button?

2. Most cameras by default focus when you press the shutter release button by half. In this case, point your camera towards the subject, half press the shutter button where you will get focus confirmation light or beep or some signal. Keep your finger there at half press, do not leave it. Recompose by moving the camera and press the rest of the way on shutter release button. Your focus keeps locked at the plane where you focused initially. If you leave the half pressed button and repress, the camera will focus again.

3. If you prefer this method, please learn how to set focus function to back button in your camera. Different cameras could have different menus, but basic function is the same. Take care to remove the focus function from the shutter release button and assign the function to the button on the back of the camera. In this case camera starts focusing only when you press the back button. Once done, you focus by pointing the camera at the subject and pressing the focus button on the back of the camera. Keep the button pressed in case of Continuous / Servo focus. You can leave the button in case of Single focus. Recompose, press shutter release and take the photo.

• This reply was modified 2 weeks, 2 days ago by  Gopala Krishna Baliga.

[Gopala Krishna Baliga]

Expected Price?

[Gopala Krishna Baliga]

I am just doing guess work. Could there be some dust trapped between your lens and sensor? Remove the lens, face the camera downwards, run camera sensor cleaning program. Fit the lens again. See if the issue is solved.

[Gopala Krishna Baliga]

Please post Wild Life Photos in the appropriate Group.
Also write Details of Camera, Lens, Exif ( Shutter speed, Aperture, ISO, Focal Length) while asking for suggestions for improvement.

[Gopala Krishna Baliga]

General advice in this kind of situations is to go for dedicated Prosumer Birding Lens of the type Nikon 200-500 or 300mm f4 (or Sigma or Tamron Lenses in this range). I am not familiar with the birding lenses fitting Nikon Mirrorless Cameras. You need to do a search

[Gopala Krishna Baliga]

Thank you Sunil Rao

[Gopala Krishna Baliga]

Depends on your budget. 70-300 Range is the basic wildlife lens. If you need longer reach you can go for Tamron / Sigma 15-600, If you want original Canon, you can go for Canon 100-400…. there is no end to higher end… there are more.

[Gopala Krishna Baliga]

It will downgrade your F4 aperture by two stops. That is to f/8 ( First stop F/5.6, second F/8). It will downgrade sharpness slightly. You will get x2 focal length

[Gopala Krishna Baliga]

Extension Tubes are used in Macro Photography. They just bring the plane of focus closer to your lens and magnify the subject. You must have confused them with Extenders which are lens systems which take your focal plane farther away and act as telescopic additions to your lens.

[Gopala Krishna Baliga]

Yes sir. Photography is a costly but very satisfying hobby for me. That’s better. Please focus on learning. You can ask any doubts you have in the forum and Sudhir Sir my answer. Better to go for regular birding lenses than trying to convert your existing lens for longer range with extender. That is not a best option.. Wait till you can offer at least the basic birding lenses, and then upgrade.