Monday, September 2, 2013

AmScope 40X-1600X Lab Clinic Vet Trinocular Turret Phase Contrast Microscope

AmScope 40X-1600X Lab Clinic Vet Trinocular Turret Phase Contrast Microscope

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Price: $999.98    Updated Price for AmScope 40X-1600X Lab Clinic Vet Trinocular Turret Phase Contrast Microscope now
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Product Feature

  • 40X-1600X eight widefield magnification settings
  • Simul-focal trinocular head boasts unique features
  • Adjustable 23mm photo port and C-mount adapter included
  • 3D two-layer mechanical stage with coaxial coarse and fine focusing and iris Abbe condenser
  • Phase contrast kit includes turret iris diaphragm condenser, CT lens, and four phase contrast Plan objectives, 10x, 20x, 40x and 100x.

Product Description

This phase contrast microscopy system includes a T490A trinocular microscope and a bright & dark field phase contrast kit. It is a perfect laboratory instrument for clinics, Vets, Doctors, and professional students.

The T490A features a unique "simul-focal" optical system with an adjustable trinocular port to enable well-focused clear images on your PC or video screen while simultaneously obtaining sharp, focused images through the eyepieces. Most trinocular microscopes allow you to view either through the trinocular port or the eyepieces only, forcing you to switch between the two. Since these trinocular ports are not "simul-focal" with the rest of the microscope optical system, you have to re-focus the microscope after each switch. The T490A, however, erases this step by providing "simul-focal" viewing. Especially handy for teaching demonstrations, clinical examinations and laboratory applications, the "simul-focal" feature allows your students or colleagues to view clear images simultaneously while you work through the eyepieces. In addition, the T490A's industry standard 23mm photo port can be converted into a C-Mount port by attaching the included C-mount adapter, allowing you to attach most microscope digital cameras and video systems on the market.

The T490A includes a 30-degree inclined 360-degree swiveling, compensation-free trinocular head, a 3-D mechanical stage, and an intensity-variable halogen illumination system. The bright & dark field phase contrast kit is complete, coming with a phase contrast turret condenser with iris diaphragm, a CT lens, and a set of phase contrast 10x, 20x, 40x and 100x plan objectives. The 1.25NA turret condenser includes open bright field position, DF, and Ph 1, 2, 3, and 4 positions. It arrives brand new in a factory sealed box and retails for more than $3,600.

AmScope 40X-1600X Lab Clinic Vet Trinocular Turret Phase Contrast Microscope Review

For being one of the least expensive phase contrast trinocular scopes out there, this is a good bargain for the money. The build is impressively stout, and objectives have just enough resolution to make out the same structures as a higher end scope (I've used primarily Olympus). I do filamentous bacteria ID for wastewater, and although I must admit it's harder to be able to see cell structure on this scope than on an Olympus, it's still faintly observable. As it's a fraction of the price, I can't complain.

I have found one flaw thus far, but it turned out to be a happy accident of sorts. In calibrating the phase rings, I found that the 100x phase setting on the turret condenser was manufactured too far off at the 'click' on the turret to actually adjust to be in phase (you can only move the ring on the underside of the turret so much). I was able to simply mark the spot on the turret at which I could get full phase alignment (it was a couple mm off), so it's not a dealbreaker. However, the happy accident came when I happened to have the turret on the improperly aligned 'click' for 100x, and the 20x objective selected (I have no idea why I was on that), and I found that this created the perfect setup for darkfield! So I'm more than happy to have this minor adjustment for the phase contrast as I get a bonus darkfield in the process! I'm somewhat new to the field so this is probably a known thing, that you can manipulate phase to get darkfield, but it's nice and convenient to have a setting marked for it, even though it was a mistake.

The problem in the turret is just the notch on the inside that the ball bearing fits into to make that 'click' is located in slightly the wrong spot. This could be a common issue for all phase turrets from Amscope, or I could just have a faulty copy. At any rate, I'm not complaining :)

I do wish the light was a bit more powerful, as I mostly work with phase 1000x, and light is hard to come by at that combination. But for the money it's a great little scope and I'm loving being able to take photos with the trinoc.

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