|
What's the difference between the Televue barlows?
On bintel's site, they've got listed:
1.25" 2.5x barlow powermate: $310
1.25" 2x barlow: $180
1.25" 3x barlow: $180
1.25" 5x barlow powermate: $310
What's the difference between their normal barlow and the "powermate"? Is it really worth that much extra?
|