The Yashica Electro 35 is a classic 35mm rangefinder camera known for its reliability and user-friendliness. Here are the main features of this camera, along with the lenses you have mentioned:

1. Yashinon 45mm f/1.7 lens: This lens is the standard lens that comes with the Yashica Electro 35. With a bright aperture of f/1.7, it is suitable for various shooting situations, including portraits, street photography, and low-light conditions. It also provides a pleasing background blur (bokeh) when used at wide open apertures.

2. Yashikor wide-angle lens 1:4: This is a wide-angle lens that provides a broader field of view than the standard lens. With a maximum aperture of f/4, it may not be as bright as the standard lens, but it is still suitable for landscape photography, architecture, and group photos where you want to capture more of the surroundings.

3. Yashikor telephoto lens 1:4: This is a telephoto lens that offers more magnification than the standard lens. With a maximum aperture of f/4, you can bring subjects closer and capture details that are farther away. It is useful for photographing subjects at a distance, portraits with a blurred background, and other situations where you need more zoom capabilities.

Overall, these lenses provide you with a range of creative possibilities to capture different types of subjects, from wide landscapes to detailed portraits and distant subjects. With the Yashica Electro 35 as the base, this system provides a solid platform for your photographic adventures.