I shortened the quote to include the question and not your statement. The lens on this FLIR is F 1.0.
What little I know about 35mm cameras, the lower the F value the more wide-open the lens is, so in the case of thermal lands it should allow for maximum thermal transmission. This comes at the cost of having an increasingly narrow “depth” of view. Which means the subject area in focus is increasingly narrow as the f-stop value goes closer to one. There is definitely some limitation that seems to show up in this unit.
I don’t understand how the IR Defense overcomes this with their fixed lens.
I don’t know how large of a jump it is between an F1.4, 1.2, 1.0 really is? I don’t remember off the top my head what the IR Defense lend is but it’s greater than F1.0. I think it may be 1.4?
Those deer are at least 150 yards away. So you can decide for yourself what the clarity looks like. Background obviously being farther.
I will try and upload the original file to Google Drive which should be no compression loss going to YouTube, but I don’t think it’s going to be a dramatic improvement. That coyote was also standing in sunflower and weed stubble, it was not a disked up clean field, so there may have been a little interference that did not show up.
I don’t have anyway to iPhone film through the camera lens like some people do, I haven’t used this enough nor have I made enough videos and compared them from memory to what it looks like through the lens, but I don’t know that it’s significantly better than through the lens like the IR Defense is compared to its videos.
This scope definitely requires more experience of what animal movement patterns look like to aid in identification. For me last night that coyote barked back at me so I knew what it was without a doubt although I knew what it was before I heard it bark based on the way it approached me.
My local dealer said he was getting another 384 pulsar and we will compare these two. I have a 1200 yard shooting range to do another hot water milk jug test with several different devices.
This video was from my first evening with the scope. Right at dusk I saw some deer way out in the field and ranged the far Treeline behind them to be 668 yards away. I don’t know exactly how far out into the field the deer are. I believe it was greater than 500 yards.