can the Meade #128 3X Barlow Lens 1.25 Inch be used in conjunction with the stock 2x barlo on my etx 70?
can the Meade #128 3X Barlow Lens 1.25 Inch be used in conjunction with the stock 2x barlow on my etx 70?
Yes, it can be… But the results are almost sure to be horrible.
Remember that more magnification is NOT always better. Contrast is almost always better with lower magnification, because the light is less spread out, and overall brightness is almost always better with lower magnification.
I honestly wouldn’t use much more than 100x on an ETX 70. In this case, you’re limited by the optics. 70mm isn’t a lot, particularly with the large central obstruction. With a larger telescope you’d be limited by the seeing conditions/atmosphere.
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Meade #126 1.25-Inch 2x Short-Focus Barlow Lens $34.00 Measuring a mere 2.5″ long, the #126 Short-Focus Barlow Lens (1.25″) can be inserted into a star diagonal for 2x power, or the diagonal can be inserted into the #126 for 3x power. It’s a perfect match for any telescope that accepts 1.25″ eyepieces, even those with limited focus range like the ETX and DS series. The #126 maintains the crisp image quality achieved by the #122 lens.The lens is multi-… |
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Meade 128 3x 1.25-Inch Barlow Lens $34.95 Inserted into the telescope’s eyepiece holder, these Barlow lenses respectively double or triple the power obtained when an eyepiece is used alone. Both Barlow lenses include two optical elements for high-resolution, color-corrected imaging…. |
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Meade #127 1.25-Inch 2x-3x Variable Barlow Lens $34.95 The #127 Variable Barlow Lens (1.25″) features a precision sliding-lens assembly that permits variable power factors between 2x and 3x. Positive stops are provided at both ends of the lens travel, plus an engraved scale that indicates power in use.Multi-coated for maximum image contrast and light transmission, the #127 Barlow provides precise corrections for spherical and chromatic aberrations at … |
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