Compatible with cameras featuring 1/3" image sensors and a CS mount, the CS-Mount 8-50mm Varifocal DC Auto Iris Lens from Tamron incorporates an aspherical, XLD (Extra Low Dispersion) lens element and advanced optical design technology that delivers high-quality images. The optimized focus lock screws ensure that the object being captured is not distorted. With a focal length of 8 to 50mm, the lens covers standard telescopic ranges.

Designed for Cameras Featuring CS Mount    Compatible with 1/3" Image Sensors    8 to 50mm Telescopic Varifocal Lens    DC Auto Iris    Low Dispersion Glass    IR Compatible

High level of optical performance that offers 3MP compatibility

Use of an aspherical element, XLD (Extra Low Dispersion) lens, and advanced optical design technology delivers high-quality images

3MP / Full HD 1080p resolution for visible light range

Delivers f/1.6 (wide) and f/2.0 (tele) levels of brightness

XLD lens (Extra Low Dispersion) lens element delivers even lower dispersion than existing LD (Low Dispersion) lenses using a special glass material with a low dispersion close to that of fluorite lenses

Delivers megapixel image quality from the near visible to IR spectrums

8 to 50mm focal length covers standard telescopic ranges

Reduction in chromatic aberration for images with almost no color smear

Advanced design analysis techniques have been used to prevent reflections occurring on the lens surface, which affects image quality, while multiple-layer coating helps to produce clear images with minimal lens flare and ghosting

High-precision, high-quality structure designed to eliminate image degradation such as image displacement and one-sided blur

Related Questions and Answers

Q: 1. How well does the autofocus work with the Canon C70? How is the distortion correction?

A: The autofocus and distortion correction of the Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Canon RF would work well on the Canon EOS C70 Cinema Camera (RF Mount), similarly to other RF mount Canon cameras.

Q: 2. It says the filter size is 55 for the 18-50? is that correct?

A: Yes, the filter thread size for the Sigma 18-50mm f/2.8 DC DN Contemporary Lens for Sony E is 55mm.

Q: 3. Does it have AF/MF switch and a programmable focus hold button?

A: The Tamron 17-50mm f/4 Di III VXD Lens (Sony E) has one programmable focus hold button.

Q: 4. Will this have a fisheye distortion at it's widest angle zoom? need to replace a gopro with something that doesn't fisheye and was looking at one of the marshall cameras and this lens.

A: This lens is at the border of starting to get distortion.

Q: 5. Minimum Focus Distance 7.5" / 19 cm at what focal length?

A: The minimum focusing distances based on focal length for the Tamron 17-50mm F4 are 19cm at 17mm, and 30cm at 50mm.

Q: 6. Does this lens work with the R10?

A: Yes, the Sigma 18-50 f/2.8 DC DN lens works with the Canon R10.

Q: 7. I purchased this lens for my Marshall compact broadcast camera and I am having a hard time focusing. I have it ZOOMED IN to around 70mm and no matter what I do with the FOCUS RING, it will not get into focus. It seems to *almost* get into focus, but the ring doesn't move far enough or something. Can someone please help me with this? Perhaps it's something easy that I'm overlooking. I should mention that if I zoom all the way to 80mm, I am able to focus no problem. But I need to zoom out a bit to around 70mm.. and when I zoom out to anything other than the full 80mm, it doesn't want to focus no matter what. Thank you.

A: This is a CS mount lens. Please verify that the camera you are connecting this to is a cs mount camera.

Q: 8. I have a TCSL 0618 5MP lense that I need to use a polarized lens on it. will the Tamron PL polarizer filter for CCTV CS/c mount work on it?

A: I believe the 0618 has a 30mm screw thread and the tamron filter is 25.5.

Q: 9. Does this really have no optical image stabilization?

A: Yes, the Sigma 18-50mm f/2.8 DC DN Contemporary for Sony E-mount cameras does not have an optical stabilization system.

Q: 10. Does this filter work with Kowa LM16HC lens? I think the filter thread fir t that is M35.5x0.5

A: No this filter will not work on this lens. The lens has a 35.3x0.25 mm thread this filter is too small.