Products & specifications

Name: 685 nm long-pass dichroic beamsplitter
Brand: Dichroptics
SKU: DX-DI685LP-25x36

Prices shown per unit in USD. “from” price applies to orders of 5+ units; single units welcome. Specifications are the manufacturer's stated values; “typical measured” values are read from the manufacturer's measured curves shown with each product. Items marked on request are provided with your quotation. Custom wavelengths, bandwidths and sizes are quoted on request.

Fluorescence filter sets

DAPI fluorescence filter set

SKU: DX-SET-DAPI

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Three-piece excitation / dichroic / emission set for DAPI and other UV-excited blue dyes.

from $480 per unit (5+ units)
$600 single unit

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Specifications for DAPI fluorescence filter set
Set contents	Exciter + dichroic + emitter (3 pieces)
Exciter	365/40 nm (CWL 365 nm, bandwidth 40 nm); T 90%; OD6; blocking 200–800 nm
Emitter	470/30 nm (CWL 470 nm, bandwidth 30 nm); T 92%; OD6; blocking 200–900 nm
Dichroic	Long-pass 410 nm; reflects 350–390 nm (R > 90%); transmits 420–750 nm (T > 90%)
Dichroic angle of incidence	45°
Exciter / emitter size	Ø25 × 3.5 mm, mounted in ring
Dichroic size	25.2 × 35.6 × 1.1 mm
Typical measured (from curve)	50% points: exciter ≈ 344–382 nm; emitter ≈ 454–483 nm; dichroic edge ≈ 412 nm
Filter cube	Not included — filters supplied to fit your cube
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock DAPI-5060C-000 · Chroma 49000 ET-DAPI

Cube format must match your microscope (Nikon / Olympus / Zeiss / Leica). A version with a long-pass emitter is also available on request.

Fluorescence filter sets

GFP / FITC / FAM fluorescence filter set

SKU: DX-SET-GFP

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Three-piece set for GFP, FITC, FAM and similar blue-excited green emitters.

from $480 per unit (5+ units)
$600 single unit

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Specifications for GFP / FITC / FAM fluorescence filter set
Set contents	Exciter + dichroic + emitter (3 pieces)
Exciter	470/30 nm
Emitter	525/20 nm
Dichroic	Long-pass 490 nm
Blocking	OD6; OD7 excitation/emission cross-blocking
Transmission (specified)	On request
Angle of incidence	On request
Size / mounting format	On request
Typical measured (from curve)	50% points: exciter ≈ 456–489 nm; emitter ≈ 515–537 nm; dichroic edge ≈ 502 nm; passband T ≈ 93–99%
Filter cube	Not included — filters supplied to fit your cube
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock GFP-3035D-000 · Chroma 49002 ET-EGFP (FITC/Cy2)

Cube format must match your microscope.

Fluorescence filter sets

TRITC / Cy3 fluorescence filter set

SKU: DX-SET-TRITC

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Three-piece set for TRITC, Cy3, rhodamine and similar green-excited orange emitters.

from $480 per unit (5+ units)
$600 single unit

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Specifications for TRITC / Cy3 fluorescence filter set
Set contents	Exciter + dichroic + emitter (3 pieces)
Exciter	543/20 nm (CWL 543 nm, bandwidth 20 nm); T 95%; OD6; blocking 200–900 nm
Emitter	585/20 nm (CWL 585 nm, bandwidth 20 nm); T 95%; OD6; blocking 200–900 nm
Cross-blocking	OD7 (exciter vs emitter)
Dichroic	Long-pass 560 nm; reflects 500–550 nm (R 95%); transmits 570–800 nm (T 95%)
Dichroic angle of incidence	45°
Exciter / emitter size	Ø25 × 3.5 mm, mounted in ring
Dichroic size	25.2 × 35.6 × 1.1 mm
Typical measured (from curve)	50% points: exciter ≈ 531–553 nm; emitter ≈ 572–594 nm; dichroic edge ≈ 560 nm
Filter cube	Not included — filters supplied to fit your cube
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock Cy3-4040C-000 / TRITC-B · Chroma 49004 ET-Cy3/TRITC

Cube format must match your microscope.

Fluorescence filter sets

Alexa Fluor 488 fluorescence filter set

SKU: DX-SET-A488

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Three-piece set optimised for Alexa Fluor 488 and spectrally similar dyes.

from $480 per unit (5+ units)
$600 single unit

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Specifications for Alexa Fluor 488 fluorescence filter set
Set contents	Exciter + dichroic + emitter (3 pieces)
Exciter	480/30 nm
Emitter	527/20 nm
Dichroic	Long-pass 495 nm
Blocking	OD6
Transmission (specified)	On request
Angle of incidence	On request
Size / mounting format	On request
Typical measured (from curve)	50% points: exciter ≈ 466–497 nm; emitter ≈ 515–544 nm; dichroic edge ≈ 504 nm; passband T ≈ 92–97%
Filter cube	Not included — filters supplied to fit your cube
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock FITC-5050A-000 · Chroma 49002 ET-EGFP (FITC/Cy2)

Cube format must match your microscope.

Fluorescence filter sets

ICG (indocyanine green) fluorescence filter set

SKU: DX-SET-ICG

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Three-piece near-infrared set for indocyanine green (ICG) imaging.

from $480 per unit (5+ units)
$600 single unit

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Specifications for ICG (indocyanine green) fluorescence filter set
Set contents	Exciter + dichroic + emitter (3 pieces)
Exciter	770/50 nm (CWL 770 nm, bandwidth 50 nm); T 90%; OD6; blocking 200–900 nm
Emitter	845/50 nm (CWL 845 nm, bandwidth 50 nm); T 90%; OD6; blocking 200–900 nm
Dichroic	Long-pass 800 nm; reflects 630–790 nm (R 90%); transmits 820–1000 nm (T 90%)
Dichroic angle of incidence	45°
Exciter / emitter size	Ø25 × 3.5 mm, mounted in ring
Dichroic size	25.2 × 35.6 × 1.1 mm
Typical measured (from curve)	50% points: exciter ≈ 741–788 nm; emitter ≈ 819–872 nm; dichroic edge ≈ 811 nm
Filter cube	Not included — filters supplied to fit your cube
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock ICG-B-000

No directly comparable Chroma set listed in our reference data.

Fluorescence filter sets

Texas Red / ROX economy fluorescence filter set

SKU: DX-SET-TXR-E

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Cost-effective three-piece set for Texas Red, ROX and similar red emitters.

from $360 per unit (5+ units)
$445 single unit

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Specifications for Texas Red / ROX economy fluorescence filter set
Set contents	Exciter + dichroic + emitter (3 pieces)
Blocking	OD5 (economy grade)
Nominal CWL / bandwidth (exciter, emitter)	On request
Dichroic angle of incidence	On request
Size / mounting format	Standard size; exact dimensions on request
Typical measured (from curve)	Exciter ≈ 560–581 nm at 50% (peak T ≈ 90%); emitter ≈ 621–647 nm at 50% (peak T ≈ 95%); dichroic long-pass edge ≈ 595 nm
Filter cube	Not included — filters supplied to fit your cube
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock TxRed-4040C-000 · Chroma 49008 ET-mCherry/Texas Red

Economy set with OD5 blocking. The dichroic shows some transmission below 545 nm (see curve) — compare blocking with the brand sets if you image very weak signals.

Laser-line & bandpass filters

405/10 nm laser-line bandpass filter

SKU: DX-BP405-10-25

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Narrow bandpass for 405 nm diode lasers — clean-up and detection channels.

from $150 per unit (5+ units)
$260 single unit

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Specifications for 405/10 nm laser-line bandpass filter
Center wavelength (CWL)	405 nm
Bandwidth (FWHM)	10 nm
Peak transmission	85%
Blocking	OD5
Blocking range	On request
Size	Ø25.4 × 6 mm, mounted in ring
Unmounted option	Ø25.4 × 2 mm (same price, on request)
Typical measured (from curve)	Peak T ≈ 90%; 50% points ≈ 401–410 nm
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock FF01-405/10-25 · Chroma ET405/10x

Semrock FF01-405/10-25 publishes FWHM 14.1 nm (10 nm guaranteed minimum bandwidth) and Tavg >87% (400–410 nm), OD>5, Ø25 × 3.5 mm. Ours: 10 nm FWHM, specified T 85% (typical measured peak ≈ 90%), OD5 — narrower passband, thicker 6 mm mount (check holder depth).

Laser-line & bandpass filters

488/10 nm laser-line bandpass filter

SKU: DX-BP488-10-25

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Narrow bandpass for 488 nm lasers — flow cytometry, laser clean-up and detection.

from $150 per unit (5+ units)
$260 single unit

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Specifications for 488/10 nm laser-line bandpass filter
Center wavelength (CWL)	488 nm
Bandwidth (FWHM)	10 nm
Peak transmission	90%
Blocking	OD5
Blocking range	200–1100 nm
Size	Ø25.4 × 6 mm, mounted in ring
Other mount	Ø25 × 3.5 mm mounted (same price, on request)
Typical measured (from curve)	Peak T ≈ 94%; 50% points ≈ 485–493 nm
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock FF01-488/10-25 · Chroma ZET488/10x

Semrock FF01-488/10-25 publishes Tavg >93% (483–493 nm), OD>4, FWHM 15.1 nm. Ours: specified T 90% (typical measured peak ≈ 94%), OD5 — higher stated blocking, narrower passband.

Laser-line & bandpass filters

400/40 nm bandpass filter

SKU: DX-BP400-40-25

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

40 nm-wide violet bandpass for excitation and detection around 380–420 nm.

from $175 per unit (5+ units)
$285 single unit

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Specifications for 400/40 nm bandpass filter
Center wavelength (CWL)	400 nm
Bandwidth (FWHM)	40 nm
Peak transmission	90%
Blocking	OD5
Blocking range	200–1100 nm
Size	Ø25.4 × 6 mm, mounted in ring
Typical measured (from curve)	Peak T ≈ 98%; 50% points ≈ 376–419 nm
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock FF01-400/40-25

Semrock FF01-400/40-25 publishes Tavg >90% (380–420 nm) and OD>6. Ours: specified T 90% (typical measured plateau ≈ 97%), OD5 — Semrock specifies one OD more blocking.

Dichroic beamsplitters

785 nm Raman dichroic beamsplitter

SKU: DX-DI785R-25x36

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Long-pass dichroic for 785 nm Raman: reflects the laser line, transmits the Stokes-shifted signal.

from $270 per unit (5+ units)
$380 single unit

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Specifications for 785 nm Raman dichroic beamsplitter
Laser line	785 nm
Reflection	R 99% @ 785 nm
Transmission band	805–890 nm
Edge (50% transmission)	≈ 798 nm (typical measured)
Typical measured (from curve)	T ≈ 97–99.7% from 805 to 890 nm; T ≈ 0.6% at 785 nm
Angle of incidence	On request
Size	25.2 × 35.6 × 1 mm
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock LPD02-785RU-25x36 · Chroma RT785rdc

Chroma RT785rdc is 25.5 × 36 × 1 mm; ours is 25.2 × 35.6 × 1 mm — confirm fit in your holder. Measured edge ≈ 798 nm (50% T); AOI data on request.

Dichroic beamsplitters

685 nm long-pass dichroic beamsplitter

SKU: DX-DI685LP-25x36

Typical measured transmission (manufacturer data, redrawn). Lot-specific test report supplied with each order. Download curve data (CSV)

Long-pass dichroic at 685 nm for separating red / far-red fluorescence channels.

from $105 per unit (5+ units)
$215 single unit

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Specifications for 685 nm long-pass dichroic beamsplitter
Edge wavelength	685 nm (long-pass)
Reflection band	610–660 nm (high reflection)
Transmission band	700–800 nm (high transmission)
Typical measured (from curve)	T ≈ 90–94% from 700 to 800 nm; T < 1% from 610 to 660 nm; 50% edge ≈ 685 nm
Angle of incidence	On request
Size	25.2 × 35.6 × 1 mm
Other size	Ø25 × 1.1 mm (on request)
Test report	Factory test report per batch; spectral data included with shipment
Closest brand parts	Semrock FF685-Di02-25x36 · Chroma T685lpxr

Semrock FF685-Di02-25x36 publishes R>98% (350–676 nm) and T>93% (695–950 nm) — a wider specified range than ours (HR 610–660 nm, HT 700–800 nm). Chroma T685lpxr is 25.5 × 36 mm.

Don't see your wavelength? We also supply other bandpass, longpass, shortpass and single fluorescence filters, plus custom coatings. Ask for a quote with the CWL, bandwidth, blocking and size you need.