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Avis (6)
23 févr. 2018
Great when it focusses, slow lagging autofocus
I am a newbie, who has only shot in autofocus with my kit lense before I got this yongnue lense. I love the look of the pictures I get when it does focus, but it often seems to me that the autofocus is a bit slow (I'll get like 4 blurry shots before it finally focuses on what I want) compared to my kit lense, it seems like the autofocus is a bit sluggish, and when I switch into manual, the viewfinder shows a much wider range as having a sharp image than the images do (as in, you really have to wiggle it around what looks right in the view finder, to get one shot in a batch of blurry ones)
I don't know if this is just whats expected from the shallower field lenses (as opposed to the deep field kid lense). It might be, as this lense has got really good reviews from people who compared it to the canon version of this lense, but since I don't own both, I don't know if the canon one would focus better or have a truer picture in the viewfinder.
29 oct. 2015
Foundational Math arranged in very good fashion
This book is made up of roughly 140 chapters, each with a lesson and then practice problems of what you just learned, and then 25ish review problems. It's the only way that really works. I've tried tutoring kids with other programs, that don't have the built in review, and it just doesn't stick, no matter how intuitively they got it the first time.
With this book (for 4th or 5th graders) you lay the foundation of basic arithmetic on which everything else is built. It also saves tutors tons of lesson prep time, because you can simply do a lesson, knowing that the review problems are carefully selected to make it stick, instead of hunting around old chapters to try to select review problems for your student
20 juil. 2021
Nice little duplo
Cute and sturdy. My daughter loves it