#1
|
|||
|
|||
v-block filters
I recently bought an Orion (US) violet blocking filter for use on my short
tube 80mm achromat. Not being able to afford an apo, I wanted to see how this works on bright objects like the moon and Planets. It truely does reduce the purple fringing found on teh limbs of these objects! Some can say that there is a very slight yellow cast seen, but it is very slight, adn actually helps on subjects Like Saturn adn Jupiter. For those who want better color correction on their refractor but cant spend teh money for an apo, these filters seem to work well! Matthew Andrew |
#2
|
|||
|
|||
v-block filters
MRA wrote: I recently bought an Orion (US) violet blocking filter for use on my short tube 80mm achromat. Not being able to afford an apo, I wanted to see how this works on bright objects like the moon and Planets. It truely does reduce the purple fringing found on teh limbs of these objects! Some can say that there is a very slight yellow cast seen, but it is very slight, adn actually helps on subjects Like Saturn adn Jupiter. For those who want better color correction on their refractor but cant spend teh money for an apo, these filters seem to work well! Matthew Andrew You are fooling yourself if yiou think a violet filter is turning an achro into an apo or even only a half-baked ED. You don't correct anything in the colour spread you just remove the offending colour. Andrea T. |
#3
|
|||
|
|||
v-block filters
|
#4
|
|||
|
|||
v-block filters
Still waiting......;O) |
#5
|
|||
|
|||
v-block filters
Gaz wrote: Still waiting......;O) Implict from the second sentence. Andrea T. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Filter Question | Doink | Amateur Astronomy | 7 | October 29th 03 03:13 PM |
Filter Help!!!! | Jon Yardley | Astronomy Misc | 2 | July 26th 03 05:01 PM |
Filter Help!!!! | Jon Yardley | Misc | 2 | July 26th 03 05:01 PM |
What can be expected with solar filters? | Rune Allnor | Amateur Astronomy | 4 | July 17th 03 02:48 PM |