AUC-291 Series Trinocular Inverted Biological LED Microscopes with illumination Options

Transmitted brightfield and positive phase contrast

£3,850.00

AUC-291 Series Trinocular Inverted Biological LED Microscopes with illumination Options

£3,850.00

Auckland Scientific

AUC-291 Series Trinocular Inverted Biological Microscopes

Advanced long-working-distance microscopy for cultured cells, tissues and live-cell observation

The AUC-291 Series combines an infinity colour-corrected optical system, ergonomic trinocular viewing and long-working-distance optics for the observation of living cells, microorganisms and tissue cultures. Choose the AUC-291-I for transmitted-light brightfield and positive phase contrast, or the AUC-291F-I for transmitted-light observation plus reflected LED fluorescence.

Please select your required model: prices are set separately for each Shopify variant. Delivery, installation and training are quoted separately where required.

Click here to view PDF

Choose your configuration

AUC-291-I

Transmitted brightfield and positive phase contrast

4×, 10×, 20× and 40× infinity LWD plan achromatic positive phase-contrast objectives
Transmitted biological frame with adjustable 5W LED illumination
Fixed stage with Petri-dish holder, glass plate and Φ25mm metal plate
Green filter and centring telescope

AUC-291F-I

Transmitted light, positive phase contrast and reflected LED fluorescence

4× and 10× infinity LWD plan fluorescence objectives
20× and 40× infinity LWD plan semi-apochromatic positive phase-contrast fluorescence objectives
Four-channel LED fluorescence illuminator with B1 and G1 modules
Attachable mechanical stage, extension stage and expanded specimen-holder set

Key features

Infinity colour-corrected optical system for clear, flat and well-corrected images.
PL10×/22mm high-eyepoint eyepieces provide a wide, comfortable field of view.
Ergonomic trinocular head, inclined 45°, rotatable through 360° and adjustable for 50–76mm interpupillary distance.
Inward-facing quintuple nosepiece accommodates the four supplied objectives and leaves one position available.
72mm condenser working distance supports observation through culture vessels.
Intelligent ECO illumination uses an infrared sensor to control the light when the microscope is unattended.
Coaxial coarse and fine focus with 0.002mm fine division.
Trinocular imaging capability; compatible C-mount adapters and cameras are available separately.

Model comparison

Feature	AUC-291-I	AUC-291F-I
Observation methods	Brightfield and positive phase contrast	Brightfield, positive phase contrast and LED fluorescence
Viewing split	Eyepiece : trinocular = 80:20	Eyepiece : trinocular = 0:100 or 100:0
Objectives supplied	4×, 10×, 20×, 40× LWD plan achromatic positive phase contrast	4×, 10× LWD plan fluorescence; 20×, 40× LWD semi-apochromatic positive phase-contrast fluorescence
Illumination	Adjustable 5W transmitted LED	Independently controlled transmitted and reflected LED
Stage equipment	Fixed stage, Φ35mm Petri-dish holder, glass plate, Φ25mm metal plate	Fixed stage, attachable mechanical stage, extension stage, Φ35mm Petri-dish holder, glass-slide holder, Terasaki holder, glass plate and kidney-shaped metal plate
Fluorescence modules	Not applicable	B1 blue excitation and G1 green excitation
C-mount adapter	Optional	Optional

Objective specifications

Model	Objective	NA	Working distance
AUC-291-I	4× positive phase contrast	0.13	10.75mm
	10× positive phase contrast	0.25	7.45mm
	20× positive phase contrast	0.40	6.92mm
	40× positive phase contrast	0.65	2.74mm
AUC-291F-I	4× plan fluorescence	0.13	18.95mm
	10× plan fluorescence	0.30	7.27mm
	20× semi-apochromatic positive phase contrast fluorescence	0.45	6.12mm
	40× semi-apochromatic positive phase contrast fluorescence	0.65	1.79mm

AUC-291F-I fluorescence system

The four-channel LED fluorescence illuminator includes 385nm, 470nm and 560nm LED light sources and is supplied with the following two filter modules:

B1 blue-excitation module: EX 480/30 (Φ25mm), BS 505 (25.7 × 36 × 1mm), EM 535/40 (Φ25mm), for a 470nm centre-wavelength LED.
G1 green-excitation module: EX 560/40 (Φ25mm), BS 595 (25.7 × 36 × 1mm), EM 635/60, for a 560nm centre-wavelength LED.

An eye-protection plate is included. The system offers long LED life, low heat output and avoids the warm-up and lamp-replacement demands associated with traditional fluorescence illumination.

Shared technical specification

Optical system	Infinity colour-corrected optical system
Eyepieces	PL10×/22mm high-eyepoint wide-field plan eyepieces with diopter adjustment
Nosepiece	Inward-facing quintuple nosepiece
Condenser	Detachable NA 0.3 LWD condenser, 72mm working distance, with phase-adjustable sliding plate
Stage	Fixed stage, 215 × 250mm; model-specific holders as detailed above
Focusing	Coaxial coarse and fine focus with tension adjustment; 0.002mm fine division; 9mm movement range
Power input	100–240V external wide-voltage power supply

Applications

Suitable for live-cell and tissue-culture observation in universities, research institutes, medical and healthcare laboratories. Typical fields include cytology, microbiology, parasitology, oncology, immunology, genetic engineering, industrial microbiology and botany.

Three-year Auckland Scientific microscope warranty

Both variants are supplied with a three-year Auckland Scientific microscope warranty, subject to the microscope receiving an annual service. Full warranty terms are available on request.

Select your model and order online

Choose AUC-291-I or AUC-291F-I from the product options above. Prices are displayed separately for each variant. Delivery, installation and training are not included in the product price and will be quoted separately where required.

Telephone: 07853 690001
Email: michael.hallewell@auckland-scientific.co.uk
Website: www.auckland-scientific.co.uk