I think quality of some chinese cameras has really improved. I have probabaly 15 various Browning trail cams that have been in the woods five years or more and still running. I have had a couple flooded, a couple shot, a couple stolen, one destroyed by a bear, and one eaten by a hog. I have had one malfunction - I pulled the battery pack with the camera still on and it never worked again.
My cameras would not average detection out to 150 ft - probably 80 - 100 ft on average. I am not sure, even with 18 megapixel photos, I would be able to definitively tell enough about a buck at 150 ft, with my cameras, to use the information.
One negative to using a lot of cameras - only once since I quit the expensive camera business and went to less expensive - but more cameras five years ago - have we seen a buck that we did not have on camera. That was a several times a year experience when using fewer cameras. Now, when you dont have a quality buck on camera - you dont have the anticipation of a buck just showing up that you didnt know was around.
I use both “low glow” and black flash cameras and have have not been able to prove avoidance when taking pictures - but there definitely is when taking video. Black flash are also less likely to be stolen or vandalized. I have done a number of trials on bait piles and in food plots and can not discern any avoidance by deer between low glow and black flash. Deer will notice a low glow camera - especially in multi shot modes - but I have not been able to document them preferring a bait pile or one side of a food plot that only has a black flash camera.
But, my deer may be a little more tolerating, also. My deer are used to a lot of human activity - me. Where some folks feel like they are going to run their deer off if they walk through their property to pull a camera card - I consider it a travesty if I dont ride over my whole property in my SxS everyday.
To be honest, for hunting purposes - I would like a system where I could access photos without pulling cards - not because I am afraid of running deer off my property, but for making hunting decisions with up to date information. I have never felt like my current system is lacking for QDM. A lot of my property has no cell service and I have considered trying the cuddelink system - but it seems labor intensive - and I dont need anymore labor intensive habits than I already have. I dont begrudge anyone who uses the latest, greatest, most expensive system out there. I also dont want folks to think they have to have the latest, greatest, most expensive system out there to gather all the pertinent QDM data they will ever need. : emoji_thumbsup:
I have not dealt with the Chinese cams for years, but it would not surprise me at all to see significant improvements in reliability and QC over time along with commensurate increase in price. That is their typical business MO. They buy into a market at the low end with pricing that is so low, others can't compete and many will suffer the poor reliability and short lifespan. Then, as others are forced out of the market and their market share grows, they improve their reliability and QC and can raise their prices. So, your observation of improving quality does not surprise me.
I love to see additional competitors in the market. I was hoping that CuddieLink would help, but watching those threads, the lower cost appears to result in lower performance and reliability. While they are not a fit for QDM data collection because they don't transmit full resolution images, they seem to me to be a great fit for a small property with a good RF environment for a scouting application.
As for QDM data collections, one can certainly use inexpensive cams if you are willing to compromise on a few things. In fact, the gold standard for survey data is the MSU protocol. It has been vetted more than any other. The problem is that it requires point source bait which is problematic these days. Bait will overcome flash avoidance. It only requires a few weeks of survey time.
The only way to prove flash avoidance is with data analysis. Here is how I did it. I used red blob and black flash cameras and swapped the locations over time. When I did survey data pulls and compared red blob to true black flash, there was a very statistically significant difference in both mature bucks and sex ratios between the two. Flash avoidance is not spooking deer. It is simply the fact that mature bucks (in general as a class) are more cautious than younger deer. They avoid triggering the camera and keep other deer between them and that odd visual effect they are not quite sure of. Mature females can be very cautious, but they have fawns to deal with. So, the result is many more triggers by young and female deer. When doing detailed analysis on pictures using Photoshop to clean them up, it was not uncommon to see mature bucks on the very fringe of the flash. In a macro analysis used to establish sex and age distribution, these would be classified as non-positive IDs and excluded where pictures of the young deer that triggered the cam would be positive IDs and included.
Keep in mind that not all black flash is created equal. Most inexpensive cameras ramp up LEDs slowly and then take a picture and then ramp them down. They also leave the shutter open longer to compensate for a poor image sensor. Better designs have good timing between the black flash and shutter. Most folks think wavelength is the only factor involved, but both intensity and duration of the flash matter when it comes to flash avoidance.
The best analogy I can think of is a peripheral vision Field of View test that you get at the ophthalmologist office. You stare at a dot and press a button when you see dots flash in your peripheral vision. The size, brightness (intensity), and duration of those dots all vary and all impact your ability to detect the flash and push the button.
One more point to consider. Camera data is only a fraction of the data I collect for QDM decision making. It is a significant source but not the only one. We also log observations on every hunt as well and collection harvest and biological sample data for aging.
Thanks,
Jack