High-end digital SLR camera makers like Nikon, Canon and Sony brag about their megapixels and sensor photosites, but at some point it becomes moot. The same applies to high resolution 1080p HDTVs. Of all the laws of diminishing returns that affect the amount of detail a person can see, be it in a digital photograph or 1080p Blu-ray disc, your eyes trump all.
In the past half decade, I’ve dealt with several camera softness issues: (1) Excellent Tamron, Tokina and Sigma lenses from the film era are too flawed for modern high megapixel sensors. (2) There’s increasingly erratic quality control from lens manufacturers. (3) Certain digital cameras seem to drift in accuracy over time; a big issue since I’m mostly a f/2.8 shooter. (4) And finally, my eyes are just not as perfect as they used to be.
There’s nothing more frustrating that seeing a blurry image through the viewfinder, and not being 100% sure if the camera or lens are at fault, or if your own eyes (or even contact lenses, in my case) have degraded. [Read more]