130PHQ has a larger size than 107PHQ, with an aperture 23mm larger than 107PHQ. 130PHQ has a focal ratio of f/7.7 which is longer than 107PHQ’ s f/7, and a focal length of 1000mm. The quadruplet lens with two ED glasses offers excellent control of chromatic and other aberrations. With its self-flattening design, 130PHQ offers strong advantages in astronomical shooting. It supports a medium frame 60mm image circle, has a fine spot diagram with tiny distortion of the peripheral stars, and its central RMS radius is less than 2 microns.
Aperture size：130mm
Focal length：1000mm
Focal ratio：f/7.7
Objective lens：Quadruplet air-spaced APO (including two ED glass)
Image circle：60mm
Maximum accessory connection (with the focuser fully retreated)：
1. Imaging mode:
116mm（from the base of M48×0.75 male thread）
136mm（from the base of M54×0.75 male thread）
156mm（from the base of M68×1male thread）
186mm（from the base of M86×1 male thread）
2. Observing mode:
148.5mm（from the end of 2\\” eyepiece holder）
Total length：
842.5mm（including 1.25\\” eyepiece holder as dew shield contracted）
889.5mm（including the 4-piece adapter as dew shield contracted）
1011.5mm（including 1.25\\” eyepiece holder as dew shield fully stretched）
1061.5mm（including the 4-piece adapter as dew shield fully stretched）
Net weight：10.2kg
Gross weight：12.5kg
Rear-end thread type：
M86×1-M68×1
M68×1-M54×0.75
M54×0.75-M54×0.75
M54×0.75-M48×0.75（M48×0.75 filter thread inside）
Standard package items：an 130PHQ OTA，a pair of tube rings, a handle, an Askar losmandy 300mm dovetail plate, a set of 4-piece photographic adapters, a manual,an aluminum box
