The reducer is used for deep space objects, to get the f ratio down for long exposures. For planetary a barlow will increase the magnification for lunar and planetary images. By far the best way to capture the planets is with a video camera. You can use a dslr in video mode, some cameras will allow you to zoom in using a crop mode. The videos are then sorted and stacked in a program like registax (free online). The dslr has a large sensor so it's best to use a web type cam with a small sensor and high frame rate.
https://www.bintel.com.au/product/zw...ronomy-camera/ Hopefully you have good motorised tracking mount, framing an object at high magnification is not easy. Like Alex said start with the moon.