Kathleen Hebert, Artist
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Kath's Chats

Canvas/Photo Measurements

7/7/2020

3 Comments

 
Math completely and totally hurts my head.  I have made a chart of measurements to make the photo ratio  (the photo I am currently working from) equal to the canvas size.  These are random measurements - you can fill in the blanks.

The formula is:
   divide the canvas size until you get a measurement that equals or is close to your
​   photograph size.  If it is not equal to the canvas ratio - you must crop/adjust your 
   photo.

I have provided a few measurements from the standard size canvases I use.  If your photo does not meet these measurements, continue dividing until you are close.  Adjust the photo.  If the decimal is larger than .5 then round to the nearest #.  In other words 5.6" rounded off would be 6".
​24 x 30
24/2 = 12
30/2 = 15 
photo size
12 x 15

24/3 = 8
30/3 = 10
photo size
8 x 10

24/3.5 = 6.9
30/3.5 = 8.6
photo size
6.9 x 8.6

24/3.8 = 6.3
30/3.8 = 7.9
photo size
​6.3 x 7.9


18 x 24
18/2 = 9
24/2 = 12
photo size
9 x 12

18/3 = 6
24/3 = 8
photo size
6 x 8

18/3.5 = 5.1
24/3.5 = 6.9
photo size
5.1 x 6.9

18/3.8 = 4.7
24/3.8 = 6.3
photo size
​4.7 x 6.3

18/4 = 4.5
24/4 = 6
photo size
​4.5 x 6
​16 x 20
16/2 = 8
20/2 = 10
photo size
8 x 10

16/3 = 5.3
20/3 = 6.7
photo size
5.3 x 6.7

16/3.5 = 4.6
20/3.5 = 5.7
photo size
4.6 x 5.7

16/3.8 = 4.2
20/3.8 = 5.3
photo size
​4.2 x 5.3

16/4 = 4
20/4 = 5
photo size
​4 x 5
11 x 14
11/2 = 5.5
14/2 = 7
photo size
​5.5 x 7
8 x 10
8/2 = 4
10/2 = 5
photo size
​4 x 5
3 Comments
Susan Fly
7/7/2020 05:54:14 pm

Thank you, Kathy! Very helpful info for making sure our paintings have the proper perspective.

Reply
Melanie Fleming
7/7/2020 10:47:21 pm

Thanks so much! I know this was a lot of work for you but this is such a great help to us paint our pictures properly.

Reply
Kathleen Hebert
7/9/2020 02:44:40 pm

Glad this is working for you. Now I know where to look for it!! - Kathy

Reply

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    Kathleen Hebert

    I am a writer, an artist, adult art instructor, singer, dancer, creative person, arthritic and moderately crazy.

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​ by Kathleen Hebert, artist
  • Home
  • My Paintings
    • Abstract
    • Animals and Birds
    • Floral and Still Life
    • Landscape
    • People Portraits
    • Sold
  • My Book
  • Karen Fay, Guest Artist
    • Karen Fay, Abstracts
  • Art Classes for Adults
  • Blog