No problem, i do understand as I had 2 ultras at one point & they both produced different images, the tech is different in new models only slight upgrades but still differences plus lighting, time of year, weather factors etc. I know as I have slr cameras. Canons & extra lenses etc, the slightest difference in producing can make a lot of difference the final product. Like mixing a cake different ingredients & different measurements equals different taste n texture. Anyhow good luck.