Trade AO infinity 40x adv plan achro for your AO 4x plan achro

[zzffnn]

I would like to trade for your:
AO infinity plan achro 4x objective

With my:
cat 1128 40x Advance Plan Achro NA 0.66 WD 0.5mm

Any 34 mm parfocal AO inifnity PLAN achro would work.

Photos of my objective can be found in this eBay page:
http://www.ebay.com/itm/AO-Spencer-40X- ... SwbYZXUH3B

Continental US deal only.

Thank you.

[apochronaut]

Just curious, Fan. What are going to use it on? The reason I ask is, the later D.I.N. 4x .12, has an edge in planarity,contrast and colour correction but if it is going on one of the older stands, you would need to modify a bit.

[zzffnn]

Just curious, Fan. What are going to use it on? The reason I ask is, the later D.I.N. 4x .12, has an edge in planarity,contrast and colour correction but if it is going on one of the older stands, you would need to modify a bit.

Thanks, apo.

I said it wrong. I think any AO infinity plan 4x would work, even the DINs. Does not have to be 34 mm parfocal. I may use it fpr macro without stage (for example, just objective + infinity head optics (EPs + tube lens)).