RF download sizes

[Harry Harrison]

I don't have any RF images but I was wondering if it is known for sure that RF images ordered from the size dropdown menu are resized for download to the specified sizes? For example:

 

XSmall
£ 39.00
450 x 300 px 15.9 x 10.6 cm (72 dpi) 396 KB

Small
£ 60.00
691 x 461 px 24.4 x 16.3 cm (72 dpi) 933 KB

Medium
£ 140.00
1439 x 960 px 24.4 x 16.3 cm (150 dpi) 4 MB

Large
£ 165.00
2878 x 1919 px 24.4 x 16.2 cm (300 dpi) 15.8 MB

XLarge
£ 210.00
3838 x 2559 px 32.5 x 21.7 cm (300 dpi) 28.1 MB

XXLarge
£ 255.00
5117 x 3412 px 43.3 x 28.9 cm (300 dpi) 50 MB

 

I presume they are but you never know. I've always thought it odd that they put the Medium resolution image to 150 dpi, as if that made a difference in real terms. For the web sizes I suppose it's more understandable that they are at 72 dpi. I can see that the actual pixel dimensions offered and the range of sizes are calculated off the actual image size.

[Harry Harrison]

OK, I imagine I've answered my own question from this Alamy Blog entry:

 

https://www.alamy.com/blog/how-to-tell-if-an-image-file-size-is-big-enough

 

"If you’re buying a royalty-free license, you pay for the image file size you need by selecting from one of the available image sizes. If you’re buying this way, be sure to buy an image file size that’s big enough for your project. If you’re buying one of our popular pricing licenses, you’ll automatically get the highest resolution available."

 

Doesn't really explain the 150 dpi aspect but there we are.