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Abhinav

I have a newtonian reflecter and a dslr, can I reach inward focus with a focal reducer

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Can I reach focus with a DSLR and a focal reducer like with a barlow because my telescope does not have enough inward focus .

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a focal reducer moves the focal point further inwards. Using focal reducers on fast newtonians doesn't make sense. What you need is actually a Barlow lens to move the focal point further away from the focuser. However, the best solution is to use a low profile focuser so you can reach focus without a Barlow lens. 

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