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A7III or A7RIII how many megapixels enough?


MBP
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Hi guys and gals.

 

I'm new to this forum and hope to spend a lot of time here learning and contributing.

 

I need some advice.

 

I currently have the A7RIII. I mostly shoots seascape/landscape but also urban and I rarely print. If I do its "normal" size prints nothing big.

 

Now the A7III has been announced with 15 stops dynamic range.

 

I'm on the fence on selling my A7RIII and buying the A7III. Hereby I can invest in better/more glass.

 

Heres my question:

 

Is the benefit of a lot of megapixels only in regards to prints (especially if the dynamic range is the same on both cameras) or are there benefits I've missed?

 

Hope to get your 2 cents.

 

Best.

 

Martin.

 

 

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Some image editing procedures would benefit 

from larger MP counts, meaning "well beyond

24MP, but general photography, even at large 

print sizes doesn't need more than 20 or 24MP. 

   

If you do a lotta pixel level or near-pixel-level 

tweaking in post, a MP count of 35 to 45 can 

be beneficial, likewise for perspective control. 

  

But if you actually shoot huge MP counts you 

need a waaaaaaaay better than typical PC to 

deal with such image files. 

   

I have a decent Intel i-7 machine but without a 

sooperdooper graphics engine and only 12MB 

of ram. It doesn't take too well to 50MP image 

editing, but as I'd only shoot those very rarely, 

I will stick with my PC which does just fine with 

24MP images. I can't do general photography 

at 50MP anywho ... it's a sensor shifting 50MP 

feature for verrrry still subjects and very stable 

camera supports. 

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Guest Jaf-Photo

The difference in price between a used A7RIII and a new A7III is hardly enough to buy you one quality lens. So that should not be the reason for swapping.

 

I mainly use 24mp cameras but when I use 42mp, I find the level of detail thrilling. The main benefit I see is added versatility in cropping. That means I can shoot wide and then decide on a crop later. It's not how I normally shoot but it adds flexibility.

 

Dynamic range will let you fiddle a bit more with exposure in post but I think that effect is less liberating than added cropability.

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  • 2 years later...

I would keep the Sony A7Riii you have. I think it's very seldom that you would ever need 15 stops of dynamic range, and if you do you can still shoot them manually (on the odd time you would need that many). Just my opinion.

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