February 9, 2016

New Hejnar PHOTO E4 Series of Nodal Slide Rails Preview

Hejnar PHOTO E4-80 Nodal Slide Rail overview
Despite the fact that Hejnar Photo has already a full series of Nodal Slides / Rails with integrated clamp, the E3, coming at 6, 7 and 8 inches long, all had decimal scales engraved on their top surface, due to the 1/2 inch thickness.

Sometimes demand set the pace though, and since Chris Hejnar is very anxious to meet clients demands, Hejnar Photo has just introduced a new series of  Nodal Slides with integrated clamp, the E04.

This new series starts out with two models the E4-70 and the E4-80. The model names declare also the the length of 7 and 8 inches respectively, but not the actual difference, being the increase in thickness at 5/8 of an inch.
The higher side profile at 5/8 of an inch, besides being stronger, allows for laser engraving the decimal scales on the sides of the rails instead of the top, which was the point after all.

The Nodal Slides
Manufacturer Specification:
Model:E04-70E04-80
Length:7.3" (18.54 cm)8.3" (21.08 cm)
Width:1,5" (03.81 cm)
Thickness:5/8" (01.59 cm)
Weight:6.5 oz (184 gr)7.0 oz (199 gr)
Material:CNC machined
6061-T6 Aluminium

Safety Stop Screws:2 x M3
One tapped hole:1 x 1/4"-20
Engraved Scales:Metric mm on both sides
Hardware:Stainless Steel
Color:Black hard coat anodized
Made in:USA

Otherwise, both models maintain the good old Hejnar quality standards, enhancing rigidity and torsional stiffness but increasing total weight a little bit. Still not too much, since the E4-70 is 34 gr heavier and the E4-80 only 22 gr heavier than their E3 series counterparts.

The E4-70 measures exactly 7 inches ( 17.78 cm ) from the middle of the QR clamp (point 0 of the decimal scale) to the front edge. Total length of the rail excluding the clamp jaw is 7.3 inches (18.54 cm) as mentioned in the table bove.

Hejnar PHOTO E4-70 Nodal Slide Rail top-view

The E4-70 features a 14 cm decimal scale starting from the middle of the QR clamp and ending at the middle of the thread at the front of the 9 cm captive slot. Nonetheless, the usual large Hejnar bubble level is eye catching at the front edge.

Hejnar PHOTO E4-70 Nodal Slide Rail front end

Same stands for the E4-80 lengthwise, which measures exactly 8 inches ( 20.32 cm ) from the middle of the QR clamp (point 0 of the decimal scale) to the front edge. Total length of the main body without the clamp jaw is 8.3 inches (21.08 cm) as mentioned once again in the product specs above.

Hejnar PHOTO E4-80 Nodal Slide Rail top-view

The longer E4-80 features evidently a 2 cm longer decimal scale of 16 cm, starting in the same manner from the middle of the QR clamp and ending at the middle of the thread at the front of the also longer 11 cm captive slot. The large bubble level here too.

Hejnar PHOTO E4-80 Nodal Slide Rail front end



Common Characteristics

The design of the underside of the rails does not differ too much from previous models maintaining the deep hollowed out pattern in order to minimize weight as possible.
Two M3 safety stop screws come pre-installed as usual (with appropriate Allen hex key included as shown in the first photos above, in case one wishes to remove them).

Hejnar PHOTO E4-80 Nodal Slide Rail bottom-view

A closer look shows that the rear M3 safety stop screw is located in the middle of the QR clamp in line with the 0 position of the decimal scale as already mentioned above.
One 1/4"-20 tapped hole resided on the crossbar in front of the QR clamp, which permits the mounting of the rail on a 1/4" stud directly.
The hole behind the M3 screw is intended for the Screw Knob set screw, making it captive.

Hejnar PHOTO E4-80 Nodal Slide Rail rear end bottom-view

Nothing changes also for the QR clamp jaws tongue in pocket design, which design warranties linear motion and protection of the clamp parts from dirt and dust.
Both QR clamp jaws sport decima scales in 1 mm increments and digits every 1 cm counting outwards.

Hejnar PHOTO E4 Series Nodal Slide Rails QR clamp detail

It's obvious from the last two photos that the longitudinal decimal scales start with point "0" from the middle of the QR clamp helping a lot when measuring the NPP point offset as I have explained in previous reviews of Hejnar Nodal Slides as the most recent Hejnar PHOTO E030-60 6" Updated Nodal Slide Rail Review.

I hope you found the information useful, thank you for viewing.
All Photos used by permission ©2016 Chris Hejnar / Hejnar PHOTO

Price & Availability:
Current price for the E04-70 7" Nodal Rail is US$ 85.00 as well as for the E4-80 8" Nodal Rail (+Shipping where applicable); while both products are available from the Hejnar Photo online store.

If you are interested in the product, do check the Recommended Sellers page for a current and valid Hejnar Photo discount coupon.

Referenced Articles:
Hejnar PHOTO E030-60 6" Updated Nodal Slide Rail Review

Relevant Articles:
New Hejnar PHOTO E003 Nodal / Macro Rail
New Hejnar PHOTO E051 Nodal / Macro Rail
Hejnar PHOTO E050 Nodal / Macro Rail
Hejnar PHOTO E033 Nodal / Macro Rail Update
Hejnar Photo E31 Nodal / Macro Rail Review

No comments :

Post a Comment

Contact Form

Name

Email *

Message *