Can't really comment. What's the apparent field size? That's important. Many of the eyepieces over 40MM have a small apparent field. I saw the Meade 56MM Series 4000, 52 degree apparent field. I didn't like it. I'm used to the 67 degree fields on my eyepieces. The 56MM looked like your looking down a tunnel at a small image at the bottom. The apparent field size determines how big the circle your looking at is. Two eyepieces the same size but different apparent filds is like the difference between watching a 19" TV and a 35" TV. It's the same picture only bigger. The 56MM on my scope was less magnification but a smaller image and 52 degrees is not that bad. If the Celestron 50MM is less than that, you might not be happy with it. Then again, you might.
That's it;
BOB SAL