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Heiland-branded Pentax H3 with what looks like reversed aperture ring Super Tak lens
Posted By: pathdoc, 05-26-2016, 08:52 AM

Vintage Pentax H3 Honeywell Heiland Camera W Asahi Super Takumar Lens | eBay

Make it yours for $40 US plus shipping! Ideal for the Sunny Sixteen/handheld meter addict who hasn't got a Heiland in their collection. Even comes with a coldshoe mount for flash!

I suspect for my American colleagues the shipping would be substantially reduced by the lack of need to pay duties, making this an even better deal.
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05-27-2016, 08:55 AM   #16
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QuoteOriginally posted by pathdoc Quote
What, if anything, is the difference between the Super Multi Coated and the SMC, apart from the obvious external trim? Slightly improved multi-coating process? Or did they change the formula?
While I cannot speak directly to the optical formula, I can provide real data on the 19 samples in my collection. Tests are on Full Frame. SMC PENTAX 1:1.8/55 is the top scorer.

From the database:

Model Count of Units tested Average - Min F Acceptable sharp Score B (A + half of corner stdev) Average - Min F Acceptable sharp Stops Delta from fMax Average - Min F Corner stdev Average - Min F Acceptable from F1 Sum Average - Weighted Score 1 (Center counts for half)
SMC PENTAX 1:1.8/55 3 3.3098 1.5098 0.5159 14.2275 3.0519
Super-Takumar 1:2/55 1 3.3177 1.3177 0.3717 15.1711 3.1318
SMC PENTAX 1:2 55mm 6 3.4087 1.4087 0.4148 15.0304 3.2013
Auto-Takumar 1:1.8/55 1 3.6396 1.8396 0.3717 15.4461 3.4537
SMC TAKUMAR 1:2/55 4 3.7493 1.7493 0.3944 16.7773 3.5521
Super Takumar 1:2/55 1 4.1208 2.1208 0.3493 17.5693 3.9462
Super-Takumar 1:1.8/55 3 4.9361 3.1361 0.6080 21.1568 4.6321

In all cases Min F Acceptable Sharp score correlated directly to maximum achievable resolution at best F... so we are using Min F Acceptable Sharp score to show a practical difference between the models.

How to interpret the score - the last column indicates the lowest F that the lens is performing very well at on a Full Frame sensor.

Sorry for the messy table. PF automatically trims out all the extra spaces.

Last edited by jbondo; 05-27-2016 at 09:03 AM.

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