John42 wrote:
I am currently using a nikon p850. I want a more powerful telephoto.
Both the Canon EOS Rebel T6. And the Nikon D3400 come with a normal lens 18-55 mm and a telephoto zoom 70 - 300 mm.
Main purpose is birding.
Would either be worth making the $600 investment? ?
Or, should I hope I can eventually get a p900?
I can't say much about the Nikon except that as a D3000-series camera, it's not able to autofocus all Nikon lenses. I think it requires AF-S... and maybe AF-P. Same with the D5000 series. You have to step up to the D7000 series or higher to be able to autofocus a variety of other Nikon lenses. There are lens/camera compatibility charts on the Nikon website and elsewhere online.
No need for concern or compatibility charts with Canon, because every EF or EF-S lens made the past 30 years will autofocus on a T6... though there is some difference in quality and performance.
Because it's the system I use and know more about, I can tell you the Canon Rebel T6 (one of their most entry-level models) is usually bundled with 18-55mm IS "II" (okay optically, but slower and noisier focusing than the "STM" version). Two-lens T6 kits usually include the EF
75-300mm "III", which is Canon's cheapest and worst tele-zoom. It has slow, noisy micro motor focus drive, lacks image stabilization and the image quality leaves something to be desired. More expensive (of course) but MUCH BETTER are the EF-S 55-250mm IS STM or EF
70-300mm IS USM "II" zooms. The earlier 70-300mm IS USM (rather than "II") also is widely available and pretty darned good. The "USM" lenses (ultrasonic focus drive) are probably about 2X to 4X faster focusing than the "STM" lens (stepper motor focus drive).... But both STM and USM are noticeably faster and quieter than the micro motor 75-300mm. This can be an important consideration when shooting quick moving subjects like birds. But typically none of these lenses are offered with the most entry-level models such as the T6.
If your budget is around $600...
To get the most bang for your buck, I'd recommend considering "refurbished" bought directly from Canon USA via their website. Refurbished Canon cameras and lenses carry the same warranty as new and often appear little different from new. For example, right now they are offering a refurbished Rebel T5i with refurbished EF-S 18-55mm IS STM and EF-S 55-250mm IS STM lenses for $560. The 18MP T5i was the top-of-the-line Rebel in its day, and has higher performance 9-point autofocus, articulated "Touchscreen" LCD monitors and various other features that the T6 lacks... Plus both the lenses bundled with it are reasonably fast/quiet focusing STM models with Image Stabilization. (
https://shop.usa.canon.com/shop/en/catalog/eos-rebel-t5i-ef-s-18-55-is-stm-kit-with-ef-s-55-250mm-f-4-56-is-stm-refurbished) If you prefer and don't mind the higher price, this same kit is available brand new for $750 (
https://www.bhphotovideo.com/c/product/1213686-REG/canon_eos_rebel_t5i_dslr.html).
If you could stretch your budget a little farther to $660... Canon is offering the newer, 24MP T6i with a more advanced 19-point AF system and more, refurbished and bundled with those same two lenses. (
https://shop.usa.canon.com/shop/en/catalog/eos-rebel-t6i-ef-s-18-55mm-is-stm-lens-kit-with-ef-s-55-250mm-f-4-56-is-stm-lens-refurbished). The same kit is available brand new for $900 (
https://www.bhphotovideo.com/c/product/1213683-REG/canon_eos_rebel_t6i_dslr.html).
To me, either of these higher-end, refurbished models and the lenses that come with them are a MUCH better value and choice than the T6 bundle (which I assume you're seeing at Costco or Wally-mart).
Buying direct from Canon, the refurbished cameras and lenses will include all the same accessories and documentation as a brand new camera in a store would. At a minimum you will need one or more SD memory cards, which aren't expensive (a 16GB Sandisk Extreme 90MB/sec memory card costs $11 and will hold about 500 RAW images or even more JPEGs (
https://www.bhphotovideo.com/c/product/1182600-REG/sandisk_sdsdxne_016g_gnci2_extreme_16gb_sdhc_u3.html/pageID/accessory). You also might want a second battery (T5i uses LP-E8, under $50... T6i uses LP-E17 that costs under $60). I also recommend getting the matching lens hoods for all lenses, which do a good job protecting them and Canon sells sold separately from many of their lenses. The Canon ET-63 hood used by the EF-S 55-250mm IS STM lens costs $25. There's also a Vello "clone" of it available for $12. The EF-S 18-55mm IS STM uses a Canon EW-63C hood that costs $23... or there's a Vello clone costing $10.
Have fun shopping!