Hi,
I know that Sigma has or had prime lenses with long focal lengths like 300mm f/2.8 or 500mm f/4.5.
I'm not sure weather Tamron had such or not.
But why the canon "alternatives" are releasing a lot of zoom lenses like sigma 120-300, sigma 150-600 or tamron 150-600, for example, and not prime lenses with good build and image quality?
With a fair price couldn't they make quite a lot of money with them?
Regards
I know that Sigma has or had prime lenses with long focal lengths like 300mm f/2.8 or 500mm f/4.5.
I'm not sure weather Tamron had such or not.
But why the canon "alternatives" are releasing a lot of zoom lenses like sigma 120-300, sigma 150-600 or tamron 150-600, for example, and not prime lenses with good build and image quality?
With a fair price couldn't they make quite a lot of money with them?
Regards