DawnM wrote:
Yes, it’s the Rebel T6. It’s all the camera I need/ can afford right now.
I suggest you head over to Amazon and order two books:
1. Bryan Peterson's "Understanding Exposure". This is a great overview of how modern cameras work, regardless of brand. There's lots of discussion about lenses, how and why to use them, too.
https://www.amazon.com/Understanding-Exposure-Fourth-Photographs-Camera/dp/1607748509/ref=sr_1_2?keywords=understanding+exposure&qid=1552330635&s=gateway&sr=8-22. Choose one of the guide books specifically for the Rebel T6 (EOS 1300D). These guides expand upon what's in the user manual and also contain good info about lenses and other accessories. I see several available guides... I'm familiar with similar guides from David Taylor and David Busch, can recommend them, though other authors might be fine, too.
https://www.amazon.com/s?k=canon+T6&i=stripbooks&ref=nb_sb_noss_2Speaking of the user manual... not sure what came with your camera. Many come with a heavily abridged printed manual now, at best... Some don't come with a printed manual at all. Whatever you've got, I'd recommend going to the Canon USA website, look up the support section for the Rebel T6 and download the free PDF user manual you'll find there. This will assure you have a complete copy.
The Rebel T6 has a lot of automation to make shooting pretty simple. Use that and learn other, more advanced techniques a little at a time, when you feel ready.
It is a "crop sensor" camera, meaning that it uses a sensor that's smaller than the image area of your old Pentax film camera. The effect of this is that lens focal lengths will "act differently" than they did on the Pentax. Focal lengths are still the same, they just behave differently because the camera only uses the central portion of the image circle the lens produces.
You mention liking a 35mm lens on your Pentax. On the T6 a lens with 21 or 22mm focal length would give the most similar angle of view. Your 18-55mm "kit" lens includes that focal length. Or, Canon sells a rather inexpensive, ultra compact "pancake" EF-S 24mm f/2.8 STM lens that comes close too. That lens is on sale right now for $129.
You also mention taking scenic shots and may want a wider lens for that purpose. The EF-S 18-55mm sounds like your widest presently. 18mm is only moderately wide on a T6, approx. equivalent to a 28 or 29mm lens on your old Pentax. Canon offers one of the most affordable "ultrawide" zooms with their EF-S 10-18mm IS STM for about $279 right now. (Canon also sells three other 24mm lenses, as well as a number of zooms.... they have a huge selection of lenses to choose among.)
You can compare with lenses you enjoyed using on your Pentax by dividing or multiplying by a "lens factor" of 1.6. This will tell you what would be equivalent on your T6. For example, a 50mm lens served as a "normal" or "standard" on your Pentax SLR (i.e., not wide or telephoto). The same 50mm will "act like a short telephoto" (similar to what an 80mm lens would have done on your Pentax.... 50 x 1.6 = 80mm).
Doing the math to compare lenses like that is only necessary if you are trying to replicate what you're accustomed to from using that old film camera. If you've forgotten or if you never really established preconceived notions of how any given focal length behaved on your film SLR... then you really don't need to get out your calculator. All you need to do is learn how various focal lengths work on your new camera. You've got virtually every focal length from 18mm to 300mm... so can always zoom to a particular focal length to see if it accomplishes what you want.
Don't be too quick to add lenses like those above. First "do all you can" with what you've already got, since you've already have a pretty wide ranging kit of lenses.... Only consider adding if and when you find your current lenses can't accomplish something you're trying to do. There are other accessories that actually might serve you better. Only you can say what those might be, but just for example... an accessory flash is far better than the one built into any camera (more powerful, faster recycling, has it's own power supply, etc.). Or, decent quality tripod can be a good investment for many people. While a tripod certainly helps make for steadier shots, it also forces one to slow down and work more deliberately, thoughtfully and carefully. Another thing that can be really helpful is a versatile image editing program such as Adobe Elements. Finally, I also recommend a computer monitor calibration device, because most peoples' monitors are way too bright and don't render color all that accurately, which cause them to misadjust their images.
Hope this helps! Get out, shoot, make mistakes, learn and have fun with your DSLR!