Sony 300GM

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2 hours on average with steady still shot usage on the Z8, single shots, well in my use case and set up. I am certain others may get different results.

Depending on what the application travel situation is determines if the weight or carrying lots of batteries is an issue or not.

Batteries may rundown quicker doing one shoot compared to the other so its a constant gee i need to carry more batteries than i expect to be safe.

When i did a hike around Cradle Mountain in Tasi, i did just landscape nature shots 2 batteries just covered it.

Another time when the fawner was out i did a lot of macro shots on a tripod etc, using the back screen a lot i needed 4 1/2 batteries for a 7 - 8 hour day.

If the weather is very cold the situation is different again, but yes, in general the batteries could be better or the camera efficiency could be better.

Only a contrast, I can Jump a plain to the Gold Coast from Sydney with just a D850, grip 2 x D4s batteries, shoot 5-6 hours each day for 2 days and still not have touched the second battery.

Its understandable Mirror less cameras defiantly don't last as long on a battery compared to a DSLR, i wonder if it’s on the manufacturers radar to work on.

If go overseas on a holiday i take the D850 with teh small battery (no grip) or the DF as the batteries just last for days.

Happy holidays and festive season to all, stay safe and prey the world comes to its senses.
I would surely think that battery technology is on their radar and hopefully one day we’ll have tiny batteries that will last the whole day with heavy shooting.
 
Perhaps I wasn’t making myself clear.

What I was trying to get at is if he uses, say, six Z8 batteries over a three day backpacking trip vs only four for the A1. That would accentuate the weight difference.

If he uses a power bank or maybe solar to charge, then that might even it out, as far as the number of batteries between the two systems.

Not sure if solar (edit: or power banks) are an option to charge these types of batteries.
Someone would need to do a direct comparison to determine how many batteries to carry. mAh the same for the batteries.
 
Please remember, a little old lady might get two days full use on average or 2 hours if she is lucky, as it all depends on what your doing.

Its hard to quantify exactly how many hours of batteries you need, if you feel you need 2 take 3 if its 4 take 6, i mean out of four you may only use 3 this time 5 1/2 next time.

Fundamentally the battery's don't last long by some DSLR standards and that's also because as we know, in mirror less cameras you have a digital viewfinder, sensor ibis, large screen, your using the back screen more than ever before, your now using video, 120 fps, pre-set etc etc etc, however whatever you think you need add 25-30% more.

I think Sony has engineered the A1 from the cradle to the grave synergistically, it’s very efficient, over time things will get better.

I think i have gotten things off topic a little, this should be about the 300 F2.8, so i deeply apologies.

Only an opinion
 
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