- About This Purchase
- Why Buy From Roberts?
- Need more help?
Shop with Confidence
Roberts is proud to provide (at no cost to you) a Norton shopping guarantee with every order. This service provides identity theft protection, a $1000 purchase guarantee and a lowest price guarantee through a trusted third party so that you can feel safe buying from us whether you are a new customer or a returning friend!
How does Affirm work?
We have partnered with Affirm to give you a simple way to make your purchase with no hidden fees.
Easy monthly payments: Provide some basic information and get a real-time credit decision to split your purchase into monthly payments. Rates from 10% to 30% APR with loans of 3, 6, or 12 month terms.
Flexible repayment: Simply pay your monthly bill using a debit card, bank transfer at www.affirm.com/pay.
Disclosure: Subject to credit check and approval. Down payment may be required. For purchases under $100, limited payment options are available. Estimated payment amount excludes taxes and shipping fees. Affirm loans are made by Cross River Bank, a New Jersey State Chartered Commercial Bank, Member FDIC. See www.affirm.com/faqs for details.
We know that you have choices when you shop, but here is the Roberts difference:
- We have been family owned and operated for over 60 years!
- We treat our customers like family and we work to build a relationship with you that is based on understanding and meeting your needs as a photographer.
- Customer service is our NUMBER ONE priority! Don't believe us? Check out the over 9500 5 Star reviews from customers that have purchased with us!
- We have a team of the most knowledgeable professionals in the business and many of them have been with us for over 20 years!
- We have one of the largest selections of used camera equipment in the country!
Finding The Right Gear Can Be Hard
If you have any questions or need more help, you can call us at 1-800-726-5544 during normal business hours and talk to a live person. Or, if you're on a desktop or tablet, you can use our live web chat normal business hours as well. We are here to help you make sure your purchase is the right one, no matter what your experience level or needs.
About the Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye (Nikon DX)
Sigma’s 4.5mm F2.8 EX DC Circular Fisheye HSM creates an image that is a circular, curved, distorted view of reality when used on a digital SLR camera. One of the most unusual lenses a photographer can use as it produces a circular image within a black surrounding frame. It is ideal for landscapes and panoramic photography. Because of its equisolid angle projection system, the lens can be used for scientific applications. The minimum focusing distance of 5.3 inches allows the photographer to have fun with placement of subjects extremely near to the camera with distorted backgrounds. SLD (Special Low Dispersion) glass employed for effective compensation of color aberration, Super Multi-Layer lens coating reduces flare and ghosting and assures high image quality throughout the entire zoom range. In the hands of a photographer looking for creative expression and the opportunity to explore and create, this is the ultimate creative tool. The results are captivating.
- For use with smaller chip APS-c cameras only
- The circular field of view produces striking images with exaggerated perspective of near subject & extreme barrel distortion of the surrounding areas
- HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus
- The minimum focusing distance of 5.3 inches & a magnification ratio of 1 to 6 allows subjects to be as close as ¾ of an inch from the lenses’ front element.
- A front cap adapter, front/rear lens cap and carrying case are included with the lens.
|Mounts||Nikon F (DX)|
|Lens Construction||13 Elements in 9 Groups|
|Angle of View||180º|
|Number of Diaphragm Blades||6|
|Minimum Focusing Distance||13.5 cm / 5.3 in|
|Filter Size (mm)||Insertion-type gelatin filter into rear of the lens|
|Dimensions (Diameter x Length)||76.2 x 77.8 mm/3.0 x 3.1 in|
|Weight||470g / 16.6oz.|
HSM - Hyper-Sonic Motor|
EX - EX Lens
DC - DC for Digital
* Nikon Mount: Built in motor lens: compatible with D40, D40x, D60, D3000, D5000
* The appearance, specifications, and the like of the product are subject to change for improvement without notice.