amfoto1 wrote:
Costco typically only offers the cheapest possible kits. The EF-S 18-55mm STM IS is okay... and inexpensive. But the EF-S 18-135mm IS USM is a MUCH better lens in almost all respects. Better build, better image quality, wider range of focal lengths, and 2X to 4X faster USM autofocus.
80D in kit with 18-135mm USM is $1500 at B&H in NYC.
80D in kit with 18-55mm STM and EF-S 55-250mm is $1400 at B&H ($1250 with only the 18-55mm). I haven't looked but suspect it's a similar 2-lens kit at Costco, too, for the same price. For birding, the 55-250mm would come up short and it's STM might struggle to track moving subjects.
The EF-S 15-85mm IS USM lens would be a step up from the 18-135mm USM, but the 15-85mm isn't offered in kit with any camera, so the overall cost would be higher.
If wanting a larger aperture lens, the EF-S 17-55mm IS USM is a top choice, but again it's not offered in kit with any camera and the cost will be higher.
For landscape photography, the 15-85mm might serve... but the compact, lightweight and inexpensive EF-S 10-18mm IS STM ($300) or the somewhat better built EF-S 10-22mm USM ($600) might be even better.
For birding, the EF 100-400mm IS USM "II" is hard to beat for it's versatility. It costs about $2050. On 7DII and especially on 80D, it works well with 1.4X teleconverter, too. Canon's 1.4X III is rather pricey at about $425. The Kenko MC-4 1.4X for about $100 is also quite good on a crop sensor camera (I'm not 100% sure it will enable all 27 f/8-capable AF points to be used in the 80D, the way the the Canon 1.4X III will... I use the older Canon 1.4X II, also quite good on various lenses).
Of course there are also the Sigma 100-400mm ($800, but no tripod mounting ring), the new Tamron 100-400mm (price unknown, tripod ring optional), Tamron 150-600mm (original version, $870), Sigma 150-600mm "Contemporary" ($990), Tamron 150-600mm "G2" ($1400) and Sigma 150-600mm "Sports" ($1800).
Costco typically only offers the cheapest possible... (
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Thank you for your advice time and effort, I am renting the 7DMKII this weekend with the 18 to 135 and the 200 to 400, will see how it goes, going for the fall colors of the Eastern Sierras and some birding.