|

Picture Information

Free P&P
Image not available
Have one to sell? Sell it yourself

Details about  MICROSCOPE OBJECTIVE POL 60X/0.85 infinity corrected

MICROSCOPE OBJECTIVE POL 60X/0.85 infinity corrected

Seller information

99.6% Positive Feedback
Registered as a business seller

Item information

Item condition:
New
Error icon
More than 10 available / 1 sold
Please enter a quantity of $qty_dummy$ or less Please enter a quantity of 1 Purchases are limited to $qty_dummy$ per buyer Please enter quantity of 1 or more Please enter a lower number Choose quantity that is less than $qty_dummy1$ or equal to $qty_dummy$ You can only choose quantity that is equal to $qty_dummy$
Price:
£100.00
 
1 watcher
 
Experienced seller
Fast & Free delivery
New condition
Postage:
Free Standard Delivery | See details
 
Item location:
Sudbury, United Kingdom
 
Posts to:
United Kingdom
Delivery:
Between Tue. 15 Jul. and Wed. 16 Jul. to the UK Estimated via eBay FAST & FREE  help icon for estimated delivery date - opens a layer
Payments:
International postage and import charges paid to Pitney Bowes Inc. Learn More
Returns:
14 days refund, buyer pays return postage See details
Protection:

People who viewed this item also viewedFeedback on our suggestions

eBay item number:
170672563863
Seller assumes all responsibility for this listing.
Last updated on  08 Apr, 2014 15:56:37 BST  View all revisions
ybloD eeL
etatsE lairtsudnI lliH nodgnillaB 3-1
yrubduS
kloffuS
XD2 01OC
modgniK detinU

:enohP828973|78710
:liamEmoc.lacitpoxg@enitsirhc

Item specifics

Condition:
New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is ... Read moreabout the condition
MAGNIFICATION:

60x

MANUFACTURER:

PRIOR UK Probably

COVERSLIP CORRECTION:

CORRECTED 0.17mm

CLASS:

Unstated - probably Plan Achromatic

OPTICAL TUBE TYPE:

Infinity

Type:

POL - Strain free Glass

THREAD TYPE:

RMS

Numerical Aperture:

0.85

A 60X Strain Free Glass Polarising Microscope Objective for an Infinity Corrected Polarising Upright Microscope

10006

10006

On offer is high quality 60X POL microscope objective (6001)

Probably from a Prior (UK) compound polarising microscopeThis is a brand new objective from unused stock.

This objective has a standard RMS thread.

Markings on the steel barrel are:

POL 

(POL= made with strain free glass suitable for use with transmission polarising microscopes (also works well with biological upright microscopes))

60X/0.85

60 = 60X magnification /0.85 indicates the numerical aperture of the objective

infinity/0.17

infinity =  optical system 'tube length' (very common in current microscopes) / 0.17 = coverglass corrected for 0.17mm thickness of glass

----------------------------------------

Information about microscope objectives:

There are three basic types of microscope objectives:

Compound microscope objectives

This is the most common type where the microscope typically has a turret of objectives.  Within this type of objective are a host of different sub-types and magnifications, probably there over 4,000 different types of compound microscope objectives.  Examples include objectives for biological microscopes, metallurgical microscopes, phase contrast, fluorescence & polarising. Then there are different grades of optics (in increasing quality): eg achromatic, semi-plan achromatic, plan achromatic, plan apochromatic etc.  There are also different optical tube systems (reference focal length) eg infinity or 160mm.  Finally there are different threads, the most common being RMS thread --- see below for more details.

Stereo/Dissecting Zoom microscope objectives

These are larger, flatter, wider objectives with low magnification powers typically, 0.3X,0.5X,0.7X, 0.75X, 1X, 1.5X, 2X.

Monozoom system objectives

These are specialised objectives that only fit monozoom microscopes, they are typcally very small and flat (thin) and have similar low magnification powers to stereo/dissecting zoom microscope objectives above.

Information about Compound Microscope Objectives:

Thread

The most common thread is the RMS (Royal Microscopical Society) standard microscope objective thread 0.8in (20.32mm) in diameter (outside diameter of thread) based on a Whitworth thread pitch of 36 threads per inch.

Meaning of the markings on the microscope objective barrel

Example:

Plan  (objective quality grade)

100X oil/1.25 (magnification, whether immersion oil is needed to use it/numerical aperture)

160/0.17 (Optical tube length & compatible optical system in the microscope / coverslip correction indicating the thickness of the coverslip (in mm) that the optics are corrected for)

Numerical Aperture (NA)

The most important, factor in determining the resolution of an objective is the angular aperture, which has a practical upper limit of about 72 degrees (with a sine value of 0.95). When combined with refractive index, the product:

n(sin(θ))

is known as the numerical aperture (abbreviated NA), and provides a convenient indicator of the resolution for any particular objective. Numerical aperture is generally the most important design criteria (other than optical correction) to consider when selecting a microscope objective. Values range from 0.1 for very low magnification objectives (1x to 4x) to as much as 1.6 for high-performance objectives utilizing specialized immersion oils. As numerical aperture values increase for a series of objectives of the same magnification, we generally observe a greater light-gathering ability and increase in resolution.

Objective Quality Grade

The least expensive (and most common) objectives, employed on a majority of laboratory microscopes, are the achromatic objectives. These objectives are corrected for axial chromatic aberration in two wavelengths (blue and red; about 486 and 656 nanometers, respectively), which are brought into a single common focal point. Furthermore, achromatic objectives are corrected for spherical aberration in the color green  The limited correction of achromatic objectives can lead to substantial artifacts when specimens are examined and imaged with color microscopy and photomicrography. If focus is chosen in the green region of the spectrum, images will have a reddish-magenta halo (often termed residual color). Achromatic objectives yield their best results with light passed through a green filter (often an interference filter) and using black and white film when these objectives are employed for photomicrography. The lack of correction for flatness of field (or field curvature) further hampers achromat objectives. In the past few years, most manufacturers have begun providing flat-field corrections for achromat objectives and have given these corrected objectives the name of plan achromats.

The next higher level of correction and cost is found in objectives called fluorites or semi-apochromats (illustrated by center objective in Figure 2), named for the mineral fluorite, which was originally used in their construction. Figure 2 depicts the three major classes of objectives: The achromats with the least amount of correction, as discussed above; the fluorites (or semi-apochromats) that have additional spherical corrections; and, the apochromats that are the most highly corrected objectives available. Although similar in construction to fluorite objectives, the lenses have different curvatures and thickness, and are arranged in a configuration that is unique to apochromat objectives.

Objective Correction for Optical Aberration

Objective
Type
Spherical
Aberration
Chromatic
Aberration
Field
Curvature
Achromat 1 Color 2 Colors No
Plan Achromat 1 Color 2 Colors Yes
Fluorite 2-3 Colors 2-3 Colors No
Plan Fluorite 3-4 Colors 2-4 Colors Yes
Plan Apochromat 3-4 Colors 4-5 Colors Yes

(information courtesy of www.gxoptical.com and Olympus)

 

PAYMENT

We expect that you make your payment within 24hrs of purchase, preferably immediately after the auction or Buy-It-Now purchase has been made.

If you wish to pay by cheque please contact us and we will give you an address and payee instructions. When the cheque has been cleared we will process your order.

DELIVERIES

Delivery charges shown only apply to Mainland UK:

There will be a delivery surcharge for the first item and then each bulky or heavy item thereafter for delivery to:

Highlands & Islands of Scotland

There will also be an extra delivery surcharge for the first item and then each bulky or heavy item thereafter for delivery to:

Northern Ireland, Isle of Man, Isle of Wight, other islands

Please ask us for a quotation for the delivery charge.
 

Your Telephone Number
Please provide your telephone number, our carriers frequently request it, failure to do so may cause delays

UK Delivery Times

Standard delivery times are typically two working days to most mainland UK destinations
Sometimes systems purchased can be quite complex to test and quality control before dispatch, this can take us a few extra days, especially if we have a large number of these types of systems to deliver. We cannot rush this process so please bear with us, we really will do our best!  Orders received on Wednesday pm and Thursday will be dispatched for delivery on the following Monday with the exception of Bank Holiday Mondays.

Delivery times to

Highlands & Islands of Scotland

Northern Ireland, Isle of Man, Isle of Wight and other Islands

May take 3-4 days longer

European deliveries

We can deliver to any European country but the delivery costs will vary. Please contact us to arrange a quote for a European delivery.

QUESTIONS

If you have any questions we will be happy to help you, just send us a message.

 


Powered by eBay Turbo Lister

Business seller information

Folding Tables UK Ltd

Returns policy

After receiving the item, cancel the purchase within
Return postage
14 days
Buyer pays return postage
The buyer is responsible for return postage costs.
Return policy details
Returns accepted
Most Buy It Now purchases are protected by the Distance Selling Regulations, which allow you to cancel the purchase within seven working days after the day you receive the item. Find out more about your rights as a buyer - opens in a new window or tab and exceptions - opens in a new window or tab.

Questions and answers about this item

No questions or answers have been posted about this item.




Seller assumes all responsibility for this listing.

Postage and packaging

Item location: Sudbury, United Kingdom
Postage to: United Kingdom

Payment details

Payment method Preferred/Accepted  
Credit or debit card through PayPal
PayPal preferred
 

Immediate payment required for this item.

Immediate payment of £100.00 is required.
time left
Current bid amount
+
Postage amount
Bid count
time left
current bid
postage & packaging
bids
Approximately:
Current bid amount Approximately:
Postage amount Approximately:
Import charges:
Import charges:
(estimated and based on max bid)
Your bid amount
Approximately:
Approximately:

or

Your current max bid:
(Approximately:)
Increase your chances of winning by setting a higher bid now.
Let eBay place automatic bids for you  This opens an help overlay dialog about automatic bidding.
How does automatic bidding work?
As other bids come in, eBay will automatically raise your bid in small amounts, up to your limit. Learn More. - opens in a new window or tab
Close button. This closes the help overlay dialogue.
, up to
By submitting your bid, you'll be contractually committing to buy this item from the seller if you are the winning bidder.
By submitting your bid, you're committing to buy this item from the seller if you're the winning bidder. You've read and agree to the Global Postage Programme terms and conditions - opens in a new window or tab. Import charges previously quoted are subject to change if you increase you maximum bid amount.
By clicking Confirm, you commit to buy this item from the seller if you are the winning bidder.
By clicking Confirm, you're committing to buy this item from the seller if you're the winning bidder and have read and agree to the Global Postage Programme terms and conditions - opens in a new window or tab. Import charges previously quoted are subject to change if you increase your maximum bid amount.
Tell us what you think 
We've made a few changes to bidding.
Were these helpful?
Loading...
Bid layer is updating the contents.
Resume bidding, if the page doesn't update immediately.
d
h
m
s
day
hour
hours
Free P&P
See item description
Approximately:
(Enter ##1## or more)
(Enter more than ##1##)
Your maximum bid:
You've been outbid. Don't let it get away - place another bid.
You've been outbid by an automatic bid placed earlier by another bidder.
You're the highest bidder on this item!
You're the first bidder on this item!
You're the highest bidder on this item, but you're close to being outbid.
This auction is almost over and you're currently the high bidder.
You're the high bidder on this item, but the reserve price hasn't been met yet.
You've been outbid by someone else.
You can still win! Try bidding again.
You've been outbid by someone else's max bid.
You can still win! Try bidding again.
Your bid wasn't accepted because it's the same as someone else's bid.
Try raising your max bid.
You're the highest bidder!
To increase your chances of winning, try raising your bid.
You're the first bidder. Good Luck!
You're still the highest bidder!
You increased your max bid to
Please enter your bid again.
Enter a valid amount for your bid.
Enter a bid that is the minimum bid amount or higher.
You have to bid at least
Sorry, you can't lower your maximum bid once it's placed.
This seller requires the buyer to have a PayPal account to purchase this item. Get a PayPal account here .
Your bid is the same as or more than the Buy it now price. You can save time and money by buying it now.
Place bid
Review and confirm your bid
Bid confirmation
Increase maximum bid
Time left:
Current bid:
(approximately ##1##)
Your maximum bid:
(approximately ##1##)
Increase your maximum bid:
By clicking 1 Click Bid, you are agreeing to buy this item from the seller if you're the winning bidder. Learn moreabout 1-click bid - opens in a new window or tab
day
hour
min
sec
days
hours
mins
secs
(approximately ##1##)
Winning bid:
Starting bid:
Close
Congratulations The auction has ended and you're the winner.
The auction has ended, but the reserve price was not met.
Sorry, the auction has ended and you were outbid.
Good news, you're the highest bidder.
Sorry, you've been outbid.
You're the highest bidder, but the reserve price has not been met.
Please enter a higher amount than the current bid.
Maximum bids cannot be lowered once submitted.
Please enter a valid number.