One of the things a person has to consider when buying a new hunting sight is if it is worth it if you are going to get one with the ability to put a lens in or not. There are pros and cons to both options, so it really depends on what you are planning to do when you are hunting.
The most common thing that people opt for is for no lens. For one this keeps the wallet a little fuller. Lenses, depending on the quality, can run up there in price. You also don’t have to worry about lighting or the weather as much. When it rains, water can collect on the lens which will impede the vision and can cause some issues. Also without a lens, your perceived movement is a little less than with it. Note that your hold with/without a lens isn’t actually different, it will just seem like there is less float without a lens.
If you are someone who wants to extend your range, I would suggest going with the option of shooting a lens. If an animal you are waiting on is sitting out there at 40-50 yards, a lens will help you focus in on the target, making the image of your target bigger and helping keep your pin from covering up too much. If you are like me and shoot a lens in tournaments, shooting a lens will also help with the transition from hunting to target. If you are concerned about how the lens will limit the lighting, simply go with a little less power like a 2X lens or play with your peep size.
Shooting a lens for hunting does have its pros and cons, but for me I like to shoot a lens when I hunt because it helps with the transition from hunting to tournaments and I am also comfortable taking a longer shot if that is all that is presented to me. My suggestion is to play with it yourself. It’s not a one size fits all type of thing. Get a sight like the CBE TEK Hybrid Pro and play around with and without a lens and see which you like better.