Just got a Canon EOS R5. Which lenses will be best?

[taradeone]

I got my dream camera, the Canon EOS R5! I am beyond thrilled! I'm a huge fan of wildlife and landscape photography, and I also enjoy capturing people.

As you can imagine, after investing so much in the camera, I need to be mindful of my budget for the lens. I'm looking for something that will not compromise on quality but won't break the bank either. And, as I take a lot of trips to the PNW in the US, I'd love a water-resistant/waterproof lens that can withstand the elements. 

I'm exploring options in the range of 24-800mm and am open to getting multiple lenses. Does anyone have any recommendations?

I would love to have a good lens to where I can shoot photos from a short distance for landscape, but also a lens that can allow me to zoom in a far distance to shoot wildlife.

[Danfaz]

My suggestion, since you require weather resistance, would be the RF 24-105 f/4 for landscapes, people,  etc. and the RF 100-500 for the wildlife (of course, the RF 200-800, but it's not in stock anywhere right now).

The 24-105 is often on sale for $900-1000. The 100-500 is definitely more expensive, but it's a fantastic weather resistant lens. If you can do without weather resistance, the RF 100-400 is a very budget friendly alternative. 

[taradeone]

Thank you so much for the reply!

I have very much considered getting the 24-105 but also the 24-70mm lens. Although, it is more expensive. I have also considered using the RF 100-500 lens but am curious if I could use a Canon RF 1.4x Teleconverter to increase the focal length. Would you know if using a teleconverter would decrease the quality?

[Tronhard]

I hope you don't mind if I respond to this. I am not really a fan of extenders, a RF1.4x is not cheap, will cost you a stop of light, and you have to have the 100-500 at a focal length of more than 300mm to use it.  If you then want go to a shorter FL, you have to take the darned thing off.   
If you want even more focal length, then I would suggest considering the new RF 200-800 lens.  Note that it is not an L unit but cheaper than the 100-500L and is a great optic - again, the question is how hostile an environment will you shoot in... 
These taken with the R6MkII and the RF 200-800 hand-held, available light.
Red Panda@10m: R5, RF 200-800@ 600mm, f/9, 1/500sec, ISO-6400  Stick Insect: 200mm, f/7.1, 1/40sec, ISO-6400  Serval: RF 200-800@800mm, f/9, 1/500sec, ISO-6400  Gouldian Finch: 570mm, f/8, 1/250sec, ISO-6400Emu: 481mm, f/8, 1/500sec, ISO-2500 R5, RF 200-800@1280mm FoV, f/9, 1/1250sec, ISO-1600
Finally, if you are prepared to use the EF-RF converter, the Sigma 60-600sports (weather sealed) is a great lens that works perfectly with the R5.
NZ Kaka EOS R6, Sigma 60-600@ 475mm, f/6.3, 1/400sec, ISO-1600  EOS R6II, Sigma 60-600s@600mm, f/9, 1/645sec, ISO-1250   EOS R6II, Sigma 60-600s@600mm, f/6.3, 1/475sec, ISO-1600

[taradeone]

Thank you so much for the reply. I am definitely going to look into the Sigma! It's definitely a little more budget-friendly than the 100-500.

[Tronhard]

In that case, I would recommend the Sigma 60-600 for wildlife , alternatively there is a cheaper lens also available that also works well with the R5, and that is the Sigma 150-600 Contemporary lens.  It too has excellent optics and it is also lighter because it does not have to cover the extreme focal range.  You will need a Canon EF-RF adapter to make either Sigma lens work with the RF mount.
Testing the Sigma 150-600 with the Canon EOS R5. - Page 2 - Canon Community

For the lower end of the focal range, than the RF 24-105 or the RF 24-240 lens would be good choices.  The second one would give you more flexibility over a wider range of subjects, so that you don't have to take the large and heavier Sigma.
Trying out the RF 24-240 on Wildlife with the R5 - Page 2 - Canon Community

As I don't live in the USA, I shall leave the pricing for your own research.  I hope this helps.

[Addisonjones]

I personally love the 70-200mm. I use it all the time for both landscape and wildlife. You cant get TOO close to wildlife but it definitely does the job. It is amazing but it is a little more expensive.

[taradeone]

Thank you so much for the reply. I will take it into consideration!

[rs-eos]

Please provide a budget for your lenses.  Also, do you have any existing lenses from a prior camera? If so, have you considered a Canon EF to RF adapter to work with those lenses? Could be a good shorter-term solution until you can save up more for RF lenses.

[taradeone]

Before I had the Canon Powershot SX530 HS so I did not have any lenses. My budget is preferred to be $1,500 or under. Although, I am willing to spend more on multiple lenses.