Can I get sharper image than this?

I went out few hours of photo trip near place. Forest in a small mountain, blocks of city, and then the river.

Camera model : NIKON D200
Lens : AF Nikkor 300 mm f/4 IF
Date/Time : 2013:09:16 17:11:45
Resolution : 2896 x 1944
Focal length : 300.0mm (35mm equivalent: 450mm)
Exposure time: 0.0005 s (1/2000)
Aperture : f/4.0
ISO equiv. : 400
White balance : Auto
Metering Mode: pattern
Exposure : aperture priority (semi-auto)

Minimum requirement for sharp image on 300 mm lens, exposure time is one second divided by 300 x 1.4, which is 1 / 420. 1.4 is a factor for cropped body camera.

Cropped above image at 302 x 399

Converted raw image file to JPEG and cropped at 302 x 399

I take photos for hobby. What makes me irritating the most is when image quality turns out lower than the scene or object I see at the time of shooting. Most of time DSLR camera catches finest detail that the eyes can’t see. That’s why I like to shoot wild life.

How can I get sharper image than this? Are there any camera features that will improve image sharpness? I suspect metering and exposure compensation affect image quality if the focus is sharp and ISO number is fixed.

About janpenguin

Email: k2.mountain [at] gmail [dot] com Every content on the blog is made by Free and Open Source Software in GNU/Linux.
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