5″ f9 refractor, x240 ]
12″ f10 efractor x350
location ; Backyard home in South. Korea
white paper [40 x30 cm] , graphite pencils , black ink
Date of observe/ sketch ; jan, 18. 2014.
Side by Side Test: 5″ ED-Apo vs. 12″ Achro
That’s a nice and very interesting sketch, thank you for this comparison!
I love this work, very interesting, well done and thanks for sharing 🙂
Dale UK
impresionate!, felicitaciones
K.S.
The sketching and the concept are both wonderful.
Frank 🙂
Nice sketch! Congratss! 😀