[Belnan]

To do the modification I have to suggest not the forum thread but this article: Modifying the DA* 60-250mm F4 for Full Frame - Introduction - In-Depth Articles
What I did:

1. Remove the rear baffle
2. With a Dremel cut the circular border (I used the sand paper tool)
3. Paint the area with this: BLACK 2.0 - The world?s mattest, flattest, black art material by Stuar ? Culture Hustle
4. Reassemble

Now I have a spectacular 60-250 f/4.0...it is my most used lens that works also with film era cameras.

For me I cant see why they wouldn't redesign this lens for full frame, I believe it was a full frame patent to begin with. Update the motor and call it a day.

[mbukal]

For me I cant see why they wouldn't redesign this lens for full frame, I believe it was a full frame patent to begin with. Update the motor and call it a day.

because DFA 70-200 / 4 has to be better than DA * 60-250 / 4, otherwise I do not see why anyone would buy a new DFA that is both narrower and shorter, after all there is no * class, where DA * optically belongs

SMC DA * 60-250 / 4 ED [IF] SDM in the HD DFA 60-250 / 4 ED DC AW version with a cca. $ 1200 price would be a full hit in FF Pentaxland for the next decade the widest and longest telephoto lens with a constant aperture in the FF world (with the other Pentax benefits) and not the classic 70-200 / 4 that have the other

[biz-engineer]

because DFA 70-200 / 4 has to be better than DA * 60-250 / 4, otherwise I do not see why anyone would buy a new DFA that is both narrower and shorter, after all there is no * class, where DA * optically belongs

I don't see why I wouldn't buy the DFA70-200 f4 because I don't have the DA60-250 like many. An I wouldn't buy a 10 years old new apsc lens with SDM AF for use on a 2016 FF camera.

[mbukal]

I don't see why I wouldn't buy the DFA70-200 f4 because I don't have the DA60-250 like many. An I wouldn't buy a 10 years old new apsc lens with SDM AF for use on a 2016 FF camera.

most likely at a possible higher price for narrower and shorter range and not * class optics,, on DFA side is most likely to be just a focusing speed ie DC instead of SDM, here are 4 reasons for
(longer / wider / * optic quality/ price ) 1 vs. against (Focusing Speed)
that price is neglected and bigger, but it changes the SDM vs DC motor and the SMC vc HD coating will still justify the increase in prices but these 3 advantages are enough to want HD DFA * 60-250 / 4 ED DC AW instead of DFA 70- 200/4 ED DC AW
who would not be happy with the "old" optic DFA * 60-250 / 4 has a new optics at DFA * 70-200 / 2.8 as a better /the best alternative

anyway the optics on the DA * 60-250 / 4 are newer than FA35 / 2 and much better, therefore modified only actuator power and the coating on DA * 60-250 / 4 and get the original Pentax FF lens in full significance

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Last edited by mbukal; 03-07-2019 at 01:11 PM.

[deus ursus]

The 60-250 probably doesn't hold today's * lens standard, so if they were to re-release the lens as a D FA variant, it would probably lose the star, and that would be a bit strange, i guess.

[MMVIII]

To do the modification I have to suggest not the forum thread but this article: Modifying the DA* 60-250mm F4 for Full Frame - Introduction - In-Depth Articles
What I did:

1. Remove the rear baffle
2. With a Dremel cut the circular border (I used the sand paper tool)
3. Paint the area with this: BLACK 2.0 - The world?s mattest, flattest, black art material by Stuar ? Culture Hustle
4. Reassemble

Now I have a spectacular 60-250 f/4.0...it is my most used lens that works also with film era cameras.

Wow! Colour me impressed!

[monochrome]

From another thread...

Small, lightweight, and f4?

That doesn't sound like the Tokina or the Tamron... as neither is particularly light or small (or even a 70-200 in the case of the Tamron...)


But if anything, it makes it sound more like an in-house design, which I'm obviously OK with
That would also explain a delay due to a technical hitch... I wouldn't assume any large technical hitches on a 3rd party re-brand, that being part of the advantage of such an arrangement...

Oh, well, good thing we have football (soccer) season twice a year...

-Eric

.

So it could be a design like the 55-300 PLM?

Think more like the DFA 28-105 in terms of design, image quality, focusing speed and mass / focal length. It will perform above it’s price class.

[nocturnal]

I don't see why I wouldn't buy the DFA70-200 f4 because I don't have the DA60-250 like many. An I wouldn't buy a 10 years old new apsc lens with SDM AF for use on a 2016 FF camera.

I don't have a K1 but I did recently buy a bargain priced DA* 60-250 f4 for my new K-70. A new one no but for £359 with 1 year warranty... 😃

It definitely deserves the * badge... For the recent supermoon I got slightly better resolution from the DA* 60-250 with K-70 than my F*300 f4.5 with K-30... Which showed me how good it was in this test.

[awscreo]

Isn't 60-250 4 almost the same weight as the 70-200 2.8 tamron?



---------- Post added 03-07-19 at 11:44 PM ----------

The Canon one is 705g, $600 and sharp while being weather sealed. I don't know if it's unrealistic to expect similar from Pentax? (albeit probably more expensive, which is ok)

[nocturnal]

Isn't 60-250 4 almost the same weight as the 70-200 2.8 tamron?



---------- Post added 03-07-19 at 11:44 PM ----------

The Canon one is 705g, $600 and sharp while being weather sealed. I don't know if it's unrealistic to expect similar from Pentax? (albeit probably more expensive, which is ok)

No, the DA* 60-250 f4 is around 300g lighter than the Tamron 70-200 f2.8

60-250 is a much greater range than 70-200, 17% more at the short range and 25% more at the long range... Which is a big difference. The Pentax is a very sharp lens which makes beautiful images, you know it is a * lens when you see the images... The bokeh, 3D pop and colour is top notch for f4

[awscreo]

It's 1040g, Tamron is 1150g. 110g lighter, at least according to the database on this forum. Is it not correct? If it's actually around 800g I'll switch

[biz-engineer]

I don't have a K1 but I did recently buy a bargain priced DA* 60-250 f4 for my new K-70. A new one no but for £359 with 1 year warranty... ��

It's not worth more than 359, simply because of the risk of SDM failure, the repair hassle on those SDM lenses is such that it is no more expensive to buy new lenses. Ricoh have rectified those problem on the new lens designs. I had a number of issues with SDM lenses, I sold all of them, got the new DFA that are all rock solid in terms of AF motor reliability.

[nocturnal]

It's 1040g, Tamron is 1150g. 110g lighter, at least according to the database on this forum. Is it not correct? If it's actually around 800g I'll switch

My mistake, about the same weight, the Pentax lens is smaller though when compacted and uses 67mm filters. This is important to me as a hiking landscape photographer.

As I said above though the Pentax has a much larger range and the reason I have it and not the Tamron... As well as all weather use, silent AF etc.

[awscreo]

My mistake, about the same weight, the Pentax lens is smaller though when compacted and uses 67mm filters. This is important to me as a hiking landscape photographer.



As I said above though the Pentax has a much larger range and the reason I have it and not the Tamron... As well as all weather use, silent AF etc.

I'm also a landscape photographer, and that's the reason I want to reduce the weight of my kit. Hopefully the new 70-200 4 will be lighter than the 60-250. Range is nice, I agree. But I think I'd prefer a modern light and shard f4 zoom to take everywhere with me. Unfortunately f4 Uwa zoom is nowhere in sight so I'm using my 15-30 2.8 that is heavy as a brick, so I'm trying to save weight elsewhere

[nocturnal]

It's not worth more than 359, simply because of the risk of SDM failure, the repair hassle on those SDM lenses is such that it is no more expensive to buy new lenses. Ricoh have rectified those problem on the new lens designs. I had a number of issues with SDM lenses, I sold all of them, got the new DFA that are all rock solid in terms of AF motor reliability.

I know what you mean but the DFA 50 f1.4 has had at least one reported ring motor failure. Your DFA 70-200 f2.8 is twice the weight, costs 5x £359 and has a shorter range than what I wanted. Amazing IQ though I know but I'm well happy too.

Most of the 60-250s seemed to be OK, while the DA 50-135, DA 55 seemed to be more notorious but I know the risk anyhow and can manual focus, it's all about the IQ 😃