Does 0.6x 25 = 15

[John]

Hi,
My camera has a (fixed) 25mm lens. If I put a 0.6x wide angle converter in front of it, will I get the equivalent of 15mm lens?
Thanks,
..... john

 

[Joanna Carter]

Mathematically, yes

 

[John]

Mathematically, yes

Hi Joanna,
Thanks. I sense some 'reservation(s)'?
..... john

 

[Joanna Carter]

https://www.bhphotovideo.com/explora/content/add-and-converter-lenses