Originally posted by norco5 This is such great information Will! Thank you!
You're welcome. ;-)
Quote: i would like to get a lens that will fit in between my kit 18-55 and My tamron 70-300 both F4
Forgive me for correcting you here, but these details in the description of the lens are important, as there are often lenses that are quite similar and distinguished only by some small detail in the description. Sometimes, there are two lenses with the same zoom range but one lens is f/2.8-4.5, while the other is f/2.8 (constant). To distinguish the one that does not have the constant aperture, you must give the aperture range for the other one.
So, to say simply "both f/4" suggests that they both have a constant max aperture of f/4. Not true of these lenses.
The Pentax kit lens is an f/3.5-5.6, if I recall correctly,
not a constant f/4, indeed, not f/4 at all. Remember, this means that the max aperture at 18mm is f/3.5, while the max aperture at 55mm is f/5.6. For the Tamron 70-300, the aperture range is f/4 (at 70mm) to f/5.6 (at 300mm).
Quote: A lens that I could use inside and out (low light) without breaking the bank. I have looked at both fixed and zoom. I only take photos for myself, and to annoy my family.
So I need to stay within a certain price ... not over $350Can
I don't have a specific recommendation, but you can look and see what B&H in New York City has.
CLICK HERE to view their Pentax-mount lens listings, sorted by price (cheapest first). Note that there are a number of lenses with focal length ranges of 28-80 or something like that. I notice that someone really likes
the Sigma 28-70 f/2.8-4 DG ($129!). This is not to be confused with the Sigma 28-70 f/2.8 (constant aperture), which I used to own and thought was pretty good. The 28-70 f/2.8 from Sigma is comparable to the Tamron 28-75 f/2.8 but both are a bit more expensive than your budget allows. Constant max aperture usually means higher price.
Will