Having been a photographer for a long period of time, and utilizing that skill to share places within (and out) of Siouxland, I never really worry about or comment much on the use of some technology that is now available for people. My photography career began with film, and like others, transitioned to digital as was necessitated through employment and continued work needs.
As technology advanced, a person needs to adapt and embrace or forgo changes within their chosen work environment. I use a “newer” mirrorless camera, now deemed old with other recent versions, but still relevant.
When reading a blog post by photographer Thomas Stir, situated in Canada, and a longtime user of smaller camera systems, he mentioned the use of the in-camera digital teleconverter employed in Olympus OMD cameras. He mentioned nature photographer Andy Rouse, whose video talking about using the digital converter is embedded in Stir’s blog post.
Always trying to achieve better images, or closer images of critters, is a goal. Some are shy and do not allow a person to venture near them. Photographing with a physical teleconverter on a lens means losing an f-stop or shutter speed because of the real life attributes of such a device. But employing the digital teleconverter does not have similar concerns as Rouse explains in his video. I also have been using the digital converter in addition to using a physical one with good results as well.
There is no reason to not use another means in photographing subjects. And with all aspects of photography there will be limitations. But if the results are beneficial, why not?
Jerry Mennenga
Sioux City, Iowa
lostinsiouxland 
Very nice photos Jerry. Thr barred owl.seems to be watching you. Perhaps checking out your camera. I agree, if there’s some device or feature that can help…use it! I’m still wearing out my DSLRs, no mirrorless yet.
Thank you, Brad. I like the mirrorless system I am currently using. Much lighter than than the Canon gear I used professionally for so many years. After a job change, not of my choice, I dispensed with the dslr equipment. Downsized and economized shooting with Fuji. But then as some work progressed after my change I needed some better and longe glass. It was still less than what I might spend for full frame, and I get the same results. But it’s whatever one is comfortable with at the end of the day.
Precisely. And what you have a bunch of glass for already.
Nice shots! I like the colours in the wood duck shots! Always love owl shots!