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Hi, All
Looking at options for a trip to Japan in May for through-hiking (at least 5 days). I am currently spoilt by having an X-T20 and 16-50 kit, and a Panasonic GM5 and 12-60 kit lens (422g for the pair!). These are light options, and in the case of the 12-60, water resistant. My alternates are an X-T2 with the 16-80, but that may not be ready, and is significantly more expensive. Also the Nikon Z6 and 24-70 ($$$$). I have also considered picking up an EM5 mark II for the high-res and pair it with the 12-60.
However, I know that it is extremely likely to rain there in May and need weather-sealing. I want to keep things as light as possible (preferably 900g or less). That means a 1 lens wide to moderate tele solution. My GR will be backup.
I am no stranger to Pentax, but do not currently have any gear (last cam was K-5IIs, but I had 4 generations of bodies from 2006, have used most of the modern Pentax lenses). I am aware of the video situation. The feature set on the K-70 does look great for the money. I know what the AF situation looks like - this is fine.
Looking at the K-70 and 18-50. Prefer the HD version for the better colour and flare performance, and quiet AF. I would also consider the KP, as it looks a lot like the K-7 and K-5IIs. Use cases are landscapes, travelogue style photos (group hiking envionmental portraits) and detail (flowers, shrines, etc.).
Questions:
1. Does the K-70 do USB charging?
2. Realistically, how many shots am I going to get from a battery in ~15C weather with no use of video, and mainly through the viewfinder. Either one shot at a time, or a time-lapse?
3. I've read the reviews here. How do people find the above lens? Especially compared to the 18-55 WR, and 18-135? More interested in far field and curvature at distance, mid apertures, low ISO. Metering?
4. Does pixel shift help this specific lens' apparent resolution?
5. How is the WB accuracy on the K-70 in daylight or cloudy?
6. Could I expect aperture block failure within the first 3K shots?
Input welcome, and thank you in advance.