We are not accepting orders at this time. Online ordering will resume Monday, May 28th at 9:45PM EDT. Our SuperStore and offices are currently closed and will reopen on Tuesday, May 29th at 9:00AM EDT.
We apologize for any inconvenience and appreciate your patronage.
This is a special order item and is non-cancelable and non-returnable. Est. arrival at B&H is 2-4 weeks (subject to availability). Your order will be charged at time of shipment.
International orders*The Heliopan 49mm Center Filter is used with wide angle lenses. Many wide angle lenses exhibit fall-off (darkening) at the edges. This can be improved with a center filter which has a progression from dark gray in the center to clear at the edges. Heliopan wide angle center filters are available in two densities: ND-0.45 (filter factor 3x, or +1.5 stops) and ND-0.9 (filter factor 8x, +3 stops).
Most large format lens manufacturers make center filters for their wide angle lenses. Heliopan offers an economical alternative for lenses requiring a 3x filter. The 8x version is unique and the most powerful on the market.
| Type | Center Filter |
| Size | 49mm |
| Grade | Not Applicable |
| Filter Factor | 3x |
| Multi-Coated | Not Applicable |
| Rotating | Not Applicable |
| Effect | Balances densities from center of image to edges |
| Application | Wide angle photography (normally for large format) |
| Color Temperature | Not Applicable |
| Construction | Schott Glass |
| Front Filter Thread Size | 67mm |
| Front Lens Cap Size | 67mm |