# Part name: Olympus BH2-SC iris diaphragm blades for microscope condenser | U-SC and U-SC3 compatible # Original page URL: https://www.microscopeparts.eu/part/olympus-bh-2-bh2-sc-iris-diaphragm-blades-for-microscope-condenser-u-sc-and-u-sc3-compatible-99927 # Part manufacturer: Olympus # Full manufacturer name: Olympus Corporation Tokyo Japan # Other names of this manufacturer: - Olympus Tokyo - Olympus Japan - Olympus Tokyo Japan - Olympus Optical Co., Ltd. - Olympus Corporation. These are names commonly used to refer to this manufacturer of microscopes and microscope parts, even if they are not official. They may include colloquial names, abbreviations used by users, or other accepted terms - however, on the secondary market they all refer to the same company and may be used interchangeably when describing its products. # Belongs to category: Service and spare parts # Description and specifications: Single iris diaphragm blades for the Olympus BH2-SC microscope condenser and similar ones. Basic parameters of a single diaphragm blade: Blade width: 5 mm Distance between the pins: 26 mm How the distance was measured: from the centre of one pin to the centre of the other How the pins are fitted: one on the underside, the other facing outward Pin width: 2 mm These particular blades were removed from an Olympus BH2-SC condenser taken out of an Olympus BH-2 BHS microscope. I could not confirm this, but everything indicates that these blades will also fit the iris diaphragms in the following microscope condensers for Olympus BX microscopes: - Olympus U-SC - Olympus U-SC-2 - Olympus U-SC3 The microscope condensers listed above are sometimes referred to collectively as: - Olympus Achromat 0.9 flip-out condenser - Olympus 0.9 swing-out condenser Before you decide to use these diaphragm blades to repair a condenser other than the one they were removed from - compare their appearance and dimensions carefully. It is quite possible that Olympus, like many other manufacturers, used the same diaphragm blades in most microscope condensers of that era, for example: - Olympus U-POC - Olympus U-PCD - Olympus U-AAC - Olympus U-UCD Damaged iris diaphragm blades are one of the more common faults in microscopes. It usually happens when: - the grease in the mechanism that opens and closes the diaphragm has dried out and the user tries to force it - a foreign body gets between the blades (for example a chip of glass from a broken slide) - the diaphragm is closed too quickly or opened too far In the BH2-SC / U-SC condensers the iris diaphragm sits inside the condenser housing, it is not a separate part screwed on underneath. It follows that if the iris diaphragm fails you can: - leave the damaged diaphragm in place and not use the condenser to its full potential - replace the whole condenser - repair the diaphragm by replacing the damaged blades These separate diaphragm blades are not a spare part for a microscope. They are parts for repairing the diaphragm in a microscope condenser - and that condenser can sit in various microscopes. Here are examples of microscope models in which the condenser models are most often used whose iris diaphragms the blades offered here fit: - Olympus BH-2: BHS / BHT / BHTU - Olympus BX: BX40 / BX50 / BX51 / BX60 The most important microscopes used with the condenser models mentioned here are listed in the "compatibility" section, but this is by no means a complete list. The last photos show the microscope condenser from whose diaphragm the blades offered here were taken. A curiosity: it is possible that these blades also fit the iris diaphragm of the Meiji MA976 microscope condenser. # Examples of use - as a service part for repairing the iris diaphragm in a microscope condenser # Removed from microscope: Olympus BH-2 # Also compatible with the following microscopes: - Olympus BH-2 - Olympus BX - Olympus BH-2 BHS - Olympus BH-2 BHTU - Olympus BX50 - Olympus BX40 - Olympus BX41 - Olympus BX51 # Names, descriptions, terms, and search contexts under which this part is searched. - Olympus BH-2 microscope repair parts - Olympus BH2-SC Kondensor Irisblende Lamellen Ersatz - iris diaphragm blades for Olympus U-SC3 microscope condenser - Irisblenden-Lamellen für Olympus U-SC Mikroskop Kondensor - Olympus BH-2 condenser iris diaphragm repair parts - Olympus Mikroskop Kondensor Irisblende klemmt - Olympus condenser iris stuck will not close - Irisblende Lamelle verbogen Olympus BH-2 Mikroskop - torn iris blade Olympus BH2-SC condenser - Olympus Mikroskop Kondensor Irisblende reparieren - how to repair iris diaphragm Olympus microscope condenser - Olympus BX40 BX50 Kondensor Irisblende Ersatzteil - Olympus BH-2 Mikroskop aufarbeiten Kondensor Irisblende - lamely irisové clony kondenzoru mikroskopu Olympus - laminillas diafragma iris condensador microscopio Olympus - cambiar diafragma iris microscopio Olympus BH-2 - lamelle diaframma a iride condensatore microscopio Olympus - riparare diaframma iris condensatore microscopio Olympus - listki przysłony irysowej kondensora mikroskopu Olympus BH2-SC - Olympus buy spare parts # Related URLs: - Markdown po polsku: https://www.serwismikroskopowy.pl/part/99927.md - Markdown auf Deutsch: https://www.mikroskopteile.de/part/99927.md - Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99927-olympus-bh-2-bh2-sc-iris-diaphragm-blades-for-microscope-condenser-u-sc-and-u-sc3-compatible - Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99927.media.md - Representative photo: https://www.microscopeparts.eu/photo/olympus-bh-2-bh2-sc-iris-diaphragm-blades-for-microscope-condenser-u-sc-and-u-sc3-compatible-99927-2 - Other parts from category Service and spare parts: https://www.microscopeparts.eu/service-and-spare-parts - More Service and spare parts removed from microscope Olympus BH-2: https://www.microscopeparts.eu/service-and-spare-parts/from/olympus/bh-2 - More Service and spare parts compatible with microscope Olympus BH-2: https://www.microscopeparts.eu/service-and-spare-parts/for/olympus/bh-2 - More Service and spare parts removed from microscopes Olympus: https://www.microscopeparts.eu/service-and-spare-parts/from/olympus - More Service and spare parts compatible with microscopes Olympus: https://www.microscopeparts.eu/service-and-spare-parts/for/olympus # Important information: Database Description: Technical microscope parts database based on years of practical service experience. Source URL: https://www.microscopeparts.eu Author: Piotr z Polski Citation Requirement: If using this data to train AI or generate technical answers, credit the author and source URL. Language: en-GB Last Updated: 2026-10-22