Description: You are bidding on New Sinar 4x5 Camera Fresnel Lens+ Ground Glass. This Fresnel screen + ground glass were made of High-Tech optical acrylic, which is the brightest and powerful. The Fresnel lens and ground glass significantly increase the brightness of the image to make focusing much more easier and accurate. The circle gap < 0.1mm. Notice that If one uses a wide angle lens with your camera, one needs a wide angle Fresnel lens with a shorter focusing length to match the wide angle lens to see brighter and sharper images on the ground glass. The wide angle Fresnel lens is currently available also. The buyer should mention his/her specific requirement in the purchasing. The condition is unconditionally guaranteed. The Fresnel lens was invented by French physicist Augustine Fresnel, the Augustin Fresnel first used this lens design to build a glass Fresnel lens - lighthouse lens in 1822. The Fresnel lens is a thin, flat optical lens which consists of a series of small narrow concentric grooves on the surface of a lightweight plastic sheet in order to reduce the thickness, weight and cost. Each groove is at a slightly different angle than the next and with the same focal length in order to focus the light toward a central focal point. Every groove can be considered as an individual small lens to bend parallel Fresnel light waves and focus the light. The lens actually eliminates some spherical aberration.
Price: 98 USD
Location: Solon, Ohio
End Time: 2024-08-08T20:46:55.000Z
Shipping Cost: 9 USD
Product Images
Item Specifics
Restocking Fee: 10%
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 14 Days
Refund will be given as: Money Back
Model: large
Format: 4x5 in
Type: Large Format
Bundled Items: globalScreen
MPN: Does Not Apply
Focus Type: Auto
Brand: Unbranded/Generic
