ToupTek HOPE D60一Full-Frame Planar Apochromatic Refractor Telescope for Professional Astronomy The ToupTek HOPE D60 is designed as an excellent telescope for astrophotography while also being ideal for beginners who want to explore the universe with ease. Unlike bulky reflecting telescopes, this compact Planar APO refractor combines portability with a professional five-element optical system, minimizing chromatic aberration and delivering diffraction-limited clarity. With its fast f/4.66 focal ratio and built-in field flattener, the HOPE D60 is a true astrograph, providing wide, flat images without the need for additional accessories. A dual-speed focuser and versatile threaded connections make setup easy for newcomers, while giving advanced users precise control for capturing galaxies, nebulae, and star fields. The HOPE D60 combines beginner-friendly simplicity with professional performance, making it a telescope that grows with you throughout your astronomy journey. 6 Advantages of HOPE D60 1. Optical Design A 5-element planar apochromatic (PAPO) lens design: Combination of SD glass and lanthanum glass for near-zero chromatic aberration and accurate color. Native flat-field: Achieves full-frame field correction with no vignetting, no distortion, and round pinpoint sharp stars f/4.66 fast focal ratio: High light-gathering efficiency for capturing wide-field deep-sky objects, revealing detail even with short exposures. 2. Precise Mechanical Design 3. Compact and Robust OTA 4. Highly Compatible Interfaces 5. Compatible with Electric Focusers of Multiple Brands 6. Versatile Usage Suitable for deep-sky, lunar and solar photography No limits on astronomical exploration and daily photography. Astrophotography Work Telescope: ToupTek Astro HOPE D60 Guide Camera: ToupTek Astro G3M678C Camera: ToupTek Astro SkyEye62AC Equatorial Mount: iOptron CEM70 Telescope: ToupTek Astro HOPE D60 Guide Camera: ToupTek Astro GPM462M Camera: ToupTek Astro SkyEye62AC Equatorial Mount: iOptron HAE43C Smart Controller: ToupTek Astro StellaVita Excellent Optical Design Spot Diagram -Pinpoint Stars High Concentration The HOPE D60 astronomical telescope achieves a central RMS spot size <1.1 µm and the full-frame edge RMS <2.3 µm, delivering exceptionally fine, concentrated star points. Multi-wavelength focus remains consistent with near-zero chromatic aberration, ensuring sharp, accurate imaging across the field of view. A spot diagram illustrates how light from a star is distributed on the telescope’s focal plane, visually confirming stellar precision. MTF Curve MTF curve shows consistently high resolution and minimal S/T variation across the full frame. HOPE D60 is a high-resolution telescope for viewing planets and galaxies, delivering accurate celestial detail reproduction with exceptional uniformity — achieving MTF >0.95 at 10 LP/mm and >0.85 at 30 LP/mm, with minimal Sagittal/Tangential variation across the frame. Longitudinal Aberration Exceptional Chromatic Aberration Control. The axial aberration curve is flat, with multi-wavelength light converging on the same plane. This ensures minimal spherical and chromatic aberration, delivering sharp, color-accurate imaging across the entire field of view. Relative Illumination Even Brightness, No Edge Vignetting The HOPE D60 refractor telescope maintains >90% relative illumination at the 44mm full-frame edge, meaning brightness difference between center and edge is <10%. The curve decays smoothly, ensuring uniform brightness with no vignetting. Relative illumination measures brightness uniformity across the image plane, showing how light falls from the center (0mm) to the full-frame edge (22mm). Image Circle and Native Flat-field Design The HOPE D60 refractor telescope delivers full-frame coverage (44mm image circle) with sharp stars across the entire field. Its built-in field flattener simplifies imaging — no extra back-focus calculation or additional flattener required. Optimal focus is achieved at 55mm connection distance. Note: Due to precise focal plane and working distance engineering, use of a star diagonal for visual observation is not recommended. Product Details High-strength aluminum alloy CNC-machined precision Resistant to vibration & temperature changes Stable focus, reliable imaging Blackened lens tube blocks stray light for cleaner imaging Retractable hood enhances contrast & uniformity Magnetic positioning, quick attach, compact & portable 3-inch focuser with 30mm travel, coarse & fine adjustment, zero backlash Compatible with manual or electronic focusing Focus window & clear scale for quick, efficient setup A CAA allows for 360° rotation without disassembling equipment Multi-function handle for accessory expansion Integrated dovetail bar with pre-drilled slot Built-in dovetail slot for stable, flexible setup HOPE D60 is a compact portable telescope. With the dew shield retracted, it’s only 255mm and easy to pack. Highly Compatible HOPE D60 telescopecomes standard with an M48 adapter, compatible with various cameras and astrophotography accessories. An optional M54 adapter supports larger format imaging. Diverse Usage Scenarios No limits on astronomical exploration and daily photography. The HOPE D60 telescope is compatible with DSLR/mirrorless cameras, instantly transforming into a professional telephoto lens. Connect to an astronomical camera or use it as a telescope for astrophotography to unlock powerful deep-sky imaging. Dimension Packaging
