March vs NF

[dthomas]

You would think that it would not be that hard for a scope company to build a scope that holds zero, dials correctly, doesn't have poi shifts and has good glass.

 

[rwj]

You would think that it would not be that hard for a scope company to build a scope that holds zero, dials correctly, doesn't have poi shifts and has good glass.

At what price point?

 

[Turbulent Turtle]

I really thought that everyone knew that SFP zoom riflescopes are subject to line-of-sight shift. That is why March has the 48X52 and the 40-60X52 EPZoom for the benchresters. All SFP zoom riflescopes have that issue, and also, test results for one sample of a riflescope is meaningless.

I reached out to DEON to get their take on this issue because March is the brand that is being mentioned here. I was asked to paste their answer here. I think it's very bold of them to do that and it demonstrates extreme confidence in their products, and it's something you would never see from others.

This is from the chief optical designer at DEON:

"In an SFP scope, the erector lens moves inside the erector tube when changing magnification. In order for this movement to occur, there must be a slight clearance between the lens cell and the inner diameter of the erector tube. This minute clearance inevitably allows some lens displacement, which results in a point-of-aim shift. Achieving absolutely zero displacement is extremely difficult — realistically, it is impossible to make it perfectly zero.

However, at DEON we minimize this shift by preparing multiple erector lens carriers with micron-level dimensional variations that are precisely matched to the inner diameter of each erector tube. We incorporate the most suitable carrier into each individual scope, and then hand-lap the sliding surfaces to ensure smooth movement with no play. The completed scopes are then inspected using a collimator, and only units with less than 0.25 MOA of point-of-aim shift throughout the zoom range pass our quality criteria.

Therefore, if your scope is found to be outside of our specification, please return it and DEON will repair it free of charge."

 

[Ranger188]

10% price increase. If you want a March, better do it soon.

Announcement of Price Revision from 2026 | Others | MARCH Scopes | DEON Optical Design CorporationMARCH Scopes | DEON Optical Design Corporation

MARCH Scopes Official Site

marchscopes.com

 

[X-Caveman]

I really thought that everyone knew that SFP zoom riflescopes are subject to line-of-sight shift. That is why March has the 48X52 and the 40-60X52 EPZoom for the benchresters. All SFP zoom riflescopes have that issue, and also, test results for one sample of a riflescope is meaningless.

I reached out to DEON to get their take on this issue because March is the brand that is being mentioned here. I was asked to paste their answer here. I think it's very bold of them to do that and it demonstrates extreme confidence in their products, and it's something you would never see from others.

This is from the chief optical designer at DEON:

"In an SFP scope, the erector lens moves inside the erector tube when changing magnification. In order for this movement to occur, there must be a slight clearance between the lens cell and the inner diameter of the erector tube. This minute clearance inevitably allows some lens displacement, which results in a point-of-aim shift. Achieving absolutely zero displacement is extremely difficult — realistically, it is impossible to make it perfectly zero.

However, at DEON we minimize this shift by preparing multiple erector lens carriers with micron-level dimensional variations that are precisely matched to the inner diameter of each erector tube. We incorporate the most suitable carrier into each individual scope, and then hand-lap the sliding surfaces to ensure smooth movement with no play. The completed scopes are then inspected using a collimator, and only units with less than 0.25 MOA of point-of-aim shift throughout the zoom range pass our quality criteria.

Therefore, if your scope is found to be outside of our specification, please return it and DEON will repair it free of charge."

Interesting. Thanks for the response. Can the same thing happen when adjusting the diopter? Sometimes I sober up after the first relay and adjust it before the second because my vision changes. Then, I miss every clay...