The National Optical & Scientific Instruments 452-TBL-10 Stereo Microscope is a budget-friendly microscope designed for elementary, middle, and high school use. Featuring an upright, unreversed image of three dimensional objects, the 452 is ideal for students.

The optical system consists of two widefield 10x eyepieces, with left-side diopter adjustment. The eyepieces are also equipped with a reticle holder/retainer. The paired objectives are parfocalled, parcentered, and achromatic. Magnification is changed by turning the objective turret 90° to positive click stops.

To ensure a clear view of specimens, the microscope has a 4 position lighting control, allowing the student to turn on both lights or one at a time. Both top and bottom lights are tungsten. Also helping to see an accurate image is the rack and pinion focusing. Slip clutch and tension adjustments prevent damage to the system and keep the head from moving. Two locked-on stage clips keep the specimen securely attached to the microscope.

1x, 3x Magnification    Widefield 10x Eyepiece    Tungsten Illumination    Rack and Pinion Focusing    Two 80mm Frosted Stage Plates

• Paired widefield 10x eyepieces, left-side diopter adjustment,

  interpupillary adjustment from 55mm to 75mm

• Eyepieces equipped with reticle holder/retainer to accept reticle with

  23mm O.D.

• Fixed head
• Paired objectives are parfocalled, pacentered and achromatic
• Magnification changed by rotating objective turret 90° to positive click stops

• 4-position light control: top only / bottom only / top and bottom / off
• Top light (incidental) and bottom light (transmitted) corded 12V 10 watt tungsten illumination

• Rack and pinion focusing with slip clutch and tension adjustment
• Includes two 80mm stage plates: frosted glass and reversible black and white plastic contrast plate
• Two locked-on stage clips

Related Questions and Answers

Q: 1. Will this fit the 10-20mm 4-5.6?

A: This hood is specific to the Sigma 10-20mm f/3.5.

Q: 2. Is there a pan handle mountable zoom control that can be used with this lens?

A: The DZOFilm DZO 10-24mm T2.9 MFT Parfocal Cine Lens is a manually controlled lens and would require a motorized solution for zooming. The Tilta Nano II could be used to control Zoom, focus, and Iris if you add more motors. It could also attach to many items with its NATO Mount. You would also require 15mm rods or a rig with a rod to work with this solution. Tilta Nucleus Nano II FIZ Wireless Lens Control System BH #TIWLCT05

Q: 3. May I use it for Panasonic Lumix s5iix in video mode?

A: Yes, the Sigma 10-18mm f/2.8 DC DN Contemporary Lens (L-Mount) can work on the Panasonic Lumix s5iix if you are shooting 4k 60p.

Q: 4. Will this lens work on my D7200?

A: Yes it will work well

Q: 5. Is this lens compatible via sigma MC-11 to Sony A7Rlll? Thank you

A: Yes, the lens will work on the A7RIII but you will only use about 40% of the sensor, thereby reducing image quality to about 16mp.

Q: 6. If I add the tilta mirage to the 10-24 mm lens, we get vignetting at the ends with the lens wide open?

A: The recommended minimal wide-angle focal length that could be used on the Mirage VND without any vignette will be 35mm on a full-frame sensor.

Q: 7. Will this work with a Nikon D3100?

A: Yes, the Sigma 10-20mm f/3.5 EX DC HSM Lens for Nikon F is compatible on the Nikon D3100.

Q: 8. will this work with d40x?

A: Yes, this lens is compatible with the D40x.

Q: 9. Is the ball head interchangeable?

A: Yes it is interchangeable

Q: 10. Will this work with the Canon EOS 7d?

A: Thank you for your interest in Sigma products. The 10-20mm f/3.5 EX DC HSM Autofocus Zoom Lens For Canon Cameras is compatible with the Canon 7D.