Some background- I like nature photography. Everything from huge landscapes to closeups to distant objects. I am upgrading from a Canon S3IS to the T5i. The original plan was to get a single affordable all-purpose lens, but after playing for a day with the 'nifty fifty', I found a new love for photography. What lens combo do you recommend for producing sharp images with good colour and contrast like the 50mm, but without getting 'L' spendy?
1. The EF-S 18-135mm STM and a good UWA (which one?) is this long enough on a cropped sensor?
2. A UWA, the EF 15-85mm and maybe a long 100-200mm
3. A UWA, the EF 15-40mm (or tamron 17-50) walk around and a 70-200mm
Any specific brands besides Canon? If it's an EF-S lens, does that mean that you don't have to multiply the width by 1.6 to get the actual
width? Which is the best UWA lens? Or save the money and go with a bowen fisheye lens?
I don't mind heft as long as the pictures are great. Also, what filter is recommended for protecting the inside of the camera when changing lenses as this will be used in the humid jungle and forested areas with stuff that could get inside (is that something you should even worry about?).
Thanks in advance
First off, forget about crop factor and multiplying this by that and all of that BS!! 17mm is 17mm. It does not matter if it's an EF or EF-S lens. Stick the EF 17-40L or EF-S 17-55 on your t51 and both will look exactly the same at each focal length. Now if you put that 17-40L on a full frame camera the field of view will look different as the sensor is larger but the focal length did not change.
What do you consider to be "L spendy"? I could tell you that the tokina 11-16, sigma 18-35, and sigma 50-150 OS is the best 3 lens combo on a crop camera. But A) thats my opinion and B) that might be well over your budget.
For ultra wides there are a few great choices depending on needs. The over all best is arguably the canon 10-22. The tokina 11-16 is great if you need f2.8 in an UWA lens. Then there is the sigma 10-20 which is and great, less expensive, alternative to the canon 10-22. If you need the ultimate in ultra wide there is the sigma 8-16mm. As for the Bowen FE lens as a UWA.....well its a fish eye lens so you will get fish eye distortion. While I have used it as an UWA before and I love some of the photos I have produced with it I will say that it is not great for most UWA lens situations.
For general purpose walk around the canon 15-85 and 18-135 STM and both very good lenses, but are a bit on the slow side. I also like the sigma 17-70 as it has god range and is a bit faster then both the 15-85 and 18-135. If you need f2.8 through out a lenses range then any of the 17-5X lenses are good choices (canon 17-55, sigma 17-50 OS or Tamron 17-50). If you need the ultimate in speed, and don't mind sacrificing range to get it, then the sigma 18-35 f1.8 is a killer lens....and expensive...but killer
As far as "close up of distant objects" go there are quite a few choices with different range and price. In the "under 300mm" group the Tamron 70-300 VC is probably the best choice with the canon 70-300 IS a close second (my opinion, others may vary) and then the canon 55-250 IS. If you need more then 300mm then get ready to drop about $1000 (give or take several hundred). Now you have the canon 100-400, sigma 50-500, sigma 150-500, sigma 120-400, and the brand new Tamron 150-600 (or if you want an amazing prime, albeit rather slow, there is also the canon 400 f5.6L in this price group)
There are also some "all in one" lenses like the sigma 18-250 or tamron 18-270 but getting 50mm f1.8 like performance out of them is not going to happen. They have great range and are good lenses but there is also going to be a trade off for all of that range