Skip to content
Price match 30-day returns* Talk to an astronomer before you buy

iOptron iEFW Electronic Filter Wheels

iOptron iEFW electronic filter wheels let a mono camera cycle through LRGB and narrowband filters under software control during an imaging session. Both models accept 1.25" or 31mm filters.

The iEFW-15 has five positions, enough for an LRGB set plus one narrowband filter, while the iEFW-18 has eight positions for a full LRGB and Ha, OIII and SII set with a spare slot.

Filters

iOptron iEFW-15 5-Position Electronic Filter Wheel for 1.25'' or 31mm Filters
$199.00 - $199.00
$199.00
$199.00 - $199.00
$199.00

iOptron iEFW-15 5-Position Electronic Filter Wheel for 1.25'' or 31mm Filters

IOP-3381

Automates filter changes for astrophotography 5-position carousel Accepts both 1.25" mounted filters Accepts 31mm unmounted filters Enables unatte...

View full details
$199.00 - $199.00
$199.00
$199.00 - $199.00
$199.00
iOptron iEFW-18, 8-Filter Electronic Filter Wheel for 1.25'' or 31mm Filters
$289.00 - $289.00
$289.00
$289.00 - $289.00
$289.00

iOptron iEFW-18, 8-Filter Electronic Filter Wheel for 1.25'' or 31mm Filters

IOP-3382

Holds up to 8 filters Compatible with 1.25" mounted filters Compatible with 31mm unmounted filters Electronic control for automated imaging Des...

View full details
$289.00 - $289.00
$289.00
$289.00 - $289.00
$289.00