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Forum: Troubleshooting and Beginner Help 07-06-2019, 10:58 AM  
Sigma 150-500 f5-6,3 APO DG HSM II on K-1 II issue.
Posted By hansbeus
Replies: 4
Views: 348
Help wanted on this issue: Sigma 150-500 f5-6,3 APO DG HSM II on K-1 II
This lens performes well on my K-5 II. I recently bought the K-1 II and here he causes problems:

When the lens is on the body I get no reaction on commands and adjustments by buttons and wheels, the only way to shut down is to loosen the battery or the lens itself, the autofocus doesn't work
and the back panel stays blach most of the time.
I tried every possibility from M to Sv; it didn't work. I tried all kind of settings, FF, aps-c, auto, 1:1; this didn't work either.

Who can help me with this? All tips & tricks are welcome.


Hans van Beusekom,
The Netherlands.
Forum: Pentax K-1 06-11-2019, 11:27 PM  
Sigma DC (crop) lenses on K-1 II
Posted By hansbeus
Replies: 2
Views: 590
Hello everyone,

I want to replace my K-5 II for the K-1 II. However, I have some Sigma's that were not designed for a FF sensor.
These are:
18-200 f3,5-6,3 DC contemporary,
17-50 f2,8 DC EX HSM,
10-20 f4-5,5 DC.
I wonder how these lenses, that perform well on my K-5 II, perform on the K-1 II.
I trust there is enough knowledge on this forum to give me tips and tricks on this issue.
My other Sigma's are DG's, they were designed for use on a FF sensor.

I look forward for the replys,

Greetings from Holland,

Hans van Beusekom.
Forum: Troubleshooting and Beginner Help 10-11-2018, 11:38 AM  
DA 1.4x AW AF Rear Converter with K5II and Sigma APO 70-200 F2,8 II EX DG MACRO HSM
Posted By hansbeus
Replies: 4
Views: 638

I have a question about the combination DA 1.4x AW AF Rear Converter with K5II and Sigma APO 70-200 F2,8 II EX DG MACR0 HSM.
I want to buy the Pentax converter, but I'm not sure it wil work with my K5II and the Sigma 70-200.
I wonder if there is someone that has experience with this combination and is willing to share his knowledge with me.
Perhaps it is better to look for a Used Sigma 170-500 f5-6,3 APO DG? This lens is only availeble as second hand because it is no longer manufactured.
All information is welcome.

Hans van Beusekom,
The Netherlands.
Forum: Welcomes and Introductions 03-13-2013, 07:39 AM  
Posted By hansbeus
Replies: 2
Views: 301
I'm Hans van Beusekom from Valkenswaard in the Netherlands. My camera is a K10d wich I own for several years now. Every time I'm looking for a new lens I visit this well filled forum to read expieriences, pros and cons about the lens I want to buy.
I hope to learn more here.
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